Core/Guild: Fix uninitialized value on guild creation

Fix GuildMember flags left uninitialized when creating a new guild.

Valgrind log:
 Conditional jump or move depends on uninitialised value(s)
  at 0xEE49CE: Guild::Member::WritePacket(WorldPacket&) const (Guild.cpp:714)
  by 0xEE721E: Guild::HandleRoster(WorldSession*) (Guild.cpp:1314)
  by 0xEE9EBA: Guild::SendLoginInfo(WorldSession*) (Guild.cpp:1920)
  by 0xEEB689: Guild::AddMember(unsigned long, unsigned char) (Guild.cpp:2230)
  by 0xEE6A09: Guild::Create(Player*, std::string const&) (Guild.cpp:1199)
  by 0x12A71F9: guild_commandscript::HandleGuildCreateCommand(ChatHandler*, char const*) (cs_guild.cpp:92)
  by 0xC47DBE: ChatHandler::ExecuteCommandInTable(ChatCommand*, char const*, std::string const&) (Chat.cpp:362)
  by 0xC47C23: ChatHandler::ExecuteCommandInTable(ChatCommand*, char const*, std::string const&) (Chat.cpp:343)
  by 0xC488C4: ChatHandler::ParseCommands(char const*) (Chat.cpp:489)
  by 0x1188EE3: WorldSession::HandleMessagechatOpcode(WorldPacket&) (ChatHandler.cpp:217)
  by 0xFCAE37: WorldSession::Update(unsigned int, PacketFilter&) (WorldSession.cpp:312)
  by 0x107EBC6: World::UpdateSessions(unsigned int) (World.cpp:2615)
Merge pull request #10633 from jackpoz/createguild_fix

Core/Guild: Fix uninitialized value on guild creation
DB/Errors: Error fix 

Fixes #10634
Core/Aura: Fix SPELL_AURA_BIND_SIGHT invalid read

Mind Vision has Aura Effect SPELL_AURA_BIND_SIGHT which adds the target to a special Map container i_objectsToSwitch, used to switch grid containers for target Creatures of this Aura Effect.

When the target is a Creature, when the Creature is removed from world it's added to i_objectsToSwitch and then to i_objectsToRemove, iterated in this order in Map::RemoveAllObjectsInRemoveList() so the reference in i_objectsToSwitch is valid.
When the target is a Player, when the Player logs out it's added to i_objectsToSwitch but then Map::RemovePlayerFromMap() deletes the Player, leaving an invalid reference in i_objectsToSwitch.

Since the whole point of i_objectsToSwitch is to store Creatures and since the stored references are used only if the condition "GetTypeId() == TYPEID_UNIT" is verified, it's safe to add only objects of TYPEID_UNIT type to the container.

Valgrind log:
 Invalid read of size 4
   at 0xC52332: Object::GetTypeId() const (Object.h:140)
   by 0xF540D3: Map::RemoveAllObjectsInRemoveList() (Map.cpp:2136)
   by 0xF53CD2: Map::DelayedUpdate(unsigned int) (Map.cpp:2087)
   by 0xF639B1: MapManager::Update(unsigned int) (MapManager.cpp:292)
   by 0x107CB40: World::Update(unsigned int) (World.cpp:2025)
   by 0xBEB263: WorldRunnable::run() (WorldRunnable.cpp:60)
   by 0x1213792: ACE_Based::Thread::ThreadTask(void*) (Threading.cpp:186)
   by 0x515EA35: ACE_OS_Thread_Adapter::invoke() (in /usr/lib/libACE-6.0.3.so)
   by 0x5F19F8D: start_thread (pthread_create.c:311)
   by 0x6A46E1C: clone (clone.S:113)
 Address 0x401eacac is 12 bytes inside a block of size 11,736 free'd
   at 0x4C2B59C: operator delete(void*) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
   by 0xD80239: Player::~Player() (Player.cpp:915)
   by 0xF4D5A2: void Map::DeleteFromWorld<Player>(Player*) (Map.cpp:319)
   by 0xF4EBBB: Map::RemovePlayerFromMap(Player*, bool) (Map.cpp:687)
   by 0xFCC18D: WorldSession::LogoutPlayer(bool) (WorldSession.cpp:531)
   by 0xF1EDD5: WorldSession::HandleLogoutRequestOpcode(WorldPacket&) (MiscHandler.cpp:403)
   by 0xFCAE37: WorldSession::Update(unsigned int, PacketFilter&) (WorldSession.cpp:312)
   by 0x107EBC6: World::UpdateSessions(unsigned int) (World.cpp:2615)
   by 0x107C94B: World::Update(unsigned int) (World.cpp:1978)
   by 0xBEB263: WorldRunnable::run() (WorldRunnable.cpp:60)
   by 0x1213792: ACE_Based::Thread::ThreadTask(void*) (Threading.cpp:186)
   by 0x515EA35: ACE_OS_Thread_Adapter::invoke() (in /usr/lib/libACE-6.0.3.so)
SAI & Scripts: Fix unitialized values found by Valgrind

==3064== Conditional jump or move depends on uninitialised value(s)
==3064==    at 0x19B3031: boss_skarvald_the_constructor::boss_skarvald_the_constructorAI::UpdateAI(unsigned int) (boss_skarvald_dalronn.cpp:217)

==3064== Conditional jump or move depends on uninitialised value(s)
==3064==    at 0x19B3948: boss_dalronn_the_controller::boss_dalronn_the_controllerAI::UpdateAI(unsigned int) (boss_skarvald_dalronn.cpp:388)

==3064== Conditional jump or move depends on uninitialised value(s)
==3064==    at 0x15E2FCC: SmartScript::ProcessAction(SmartScriptHolder&, Unit*, unsigned int, unsigned int, bool, SpellInfo const*, GameObject*) (SmartScript.cpp:144)
==3064== Conditional jump or move depends on uninitialised value(s)
==3064==    at 0x191CB98: dummy_dragonAI::UpdateAI(unsigned int) (boss_sartharion.cpp:961)
==3064==    by 0x191D242: npc_shadron::npc_shadronAI::UpdateAI(unsigned int) (boss_sartharion.cpp:1122)
==3064== Conditional jump or move depends on uninitialised value(s)
==3064==    at 0x19AE913: boss_ymiron::boss_ymironAI::UpdateAI(unsigned int) (boss_ymiron.cpp:215)

==3064== Use of uninitialised value of size 8
...
==3064==    by 0x18A9F4A: boss_illidan_stormrage::boss_illidan_stormrageAI::Reset() (boss_illidan.cpp:1805)

==3064== Conditional jump or move depends on uninitialised value(s)
...
==3064==    by 0x18A9F4A: boss_illidan_stormrage::boss_illidan_stormrageAI::Reset() (boss_illidan.cpp:1805)

==3064== Conditional jump or move depends on uninitialised value(s)
==3064==    at 0x191CB98: dummy_dragonAI::UpdateAI(unsigned int) (boss_sartharion.cpp:961)
==3064==    by 0x191CE88: npc_tenebron::npc_tenebronAI::UpdateAI(unsigned int) (boss_sartharion.cpp:1027)

==3064== Conditional jump or move depends on uninitialised value(s)
==3064==    at 0x191CB98: dummy_dragonAI::UpdateAI(unsigned int) (boss_sartharion.cpp:961)
==3064==    by 0x191D5B8: npc_vesperon::npc_vesperonAI::UpdateAI(unsigned int) (boss_sartharion.cpp:1220)

==3064== Conditional jump or move depends on uninitialised value(s)
...
==3064==    by 0x1868F59: boss_lady_vashj::boss_lady_vashjAI::Reset() (boss_lady_vashj.cpp:206)

==3064== Conditional jump or move depends on uninitialised value(s)
==3064==    at 0x191C14C: dummy_dragonAI::MovementInform(unsigned int, unsigned int) (boss_sartharion.cpp:802)

==3064== Conditional jump or move depends on uninitialised value(s)
==3064==    at 0x1046986: Position::NormalizeOrientation(float) (Object.h:388)
...
==3064==    by 0x17D9463: boss_malchezaar::boss_malchezaarAI::SummonInfernal(unsigned int) (boss_prince_malchezaar.cpp:373)
Merge pull request #10636 from jackpoz/mindvision_fix

Core/Aura: Fix SPELL_AURA_BIND_SIGHT invalid read
Core/Scripts: Fixed uninitialized variable and memory leaks
Merge branch 'master' of https://github.com/TrinityCore/TrinityCore.git