Core/Account: Make account password change security variable and various changes

Settings within worldserver.conf:

Three settings for secruity level:
0 - None - No change to current system
1 - Email - Always requires the email entered on registration for confirming.
2 - RBAC - Groups applied with the RBAC role always require the email entered on registration for confirming.

RBAC default to every group. Changed some logs to make it more clear what is going on at all.

Emails may now no longer exceed 64 chars. Current email is used as regmail.

On account creation, two emails are saved. Registration email and normal email. Normal email is relevant afterwards. Registration email can be changed by console ONLY.

Includes new commands and changes to existing ones:
.account fulfills several new functions:
* Still prints GM Level.
* If account has permission, it displays the current email. This is not defaulted to any group.
* Security level is displayed. Also displays if user has RBAC perm if RBAC security mode is selected
.account email allows user to change email with sufficient confirmation
.account set sec email allows higher sec with higher sec than account to change the normal email. Registrationemail remains untouched here.
.account set sec regmail allows console to change registration email.
.pinfo now displays the registration and normal mail.

Also fixes .learn all crafts.
Closes #10558
Core/Socket: Fix race condition in WorldSocket

ReactorRunnable::svc() checks the status of WorldSockets while WorldRunnable::run() updates them, causing a race condition.

Helgrind log:
Possible data race during write of size 8 at 0x49961810 by thread #9
Locks held: 1, at address 0x4367A620
   at 0x51781F7: ACE_Message_Block::copy(char const*, unsigned long) (Message_Block.inl:372)
   by 0x15D048F: WorldSocket::SendPacket(WorldPacket const&) (WorldSocket.cpp:180)
   by 0x141C45E: WorldSession::SendPacket(WorldPacket const*) (WorldSession.cpp:223)
   by 0x15C49C4: WorldSession::SendAuthResponse(unsigned char, bool, unsigned int) (AuthHandler.cpp:37)
   by 0x14DA71C: World::AddSession_(WorldSession*) (World.cpp:278)
   by 0x14E601E: World::UpdateSessions(unsigned int) (World.cpp:2617)
   by 0x14E3E67: World::Update(unsigned int) (World.cpp:1986)
   by 0x100EAFA: WorldRunnable::run() (WorldRunnable.cpp:60)
   by 0x163A626: ACE_Based::Thread::ThreadTask(void*) (Threading.cpp:186)
   by 0x518F555: ACE_OS_Thread_Adapter::invoke() (OS_Thread_Adapter.cpp:103)
   by 0x4C2B5AD: mythread_wrapper (hg_intercepts.c:219)
   by 0x61DAB4F: start_thread (pthread_create.c:304)

This conflicts with a previous read of size 8 by thread #14
Locks held: none
   at 0x1008414: ACE_Message_Block::length() const (Message_Block.inl:131)
   by 0x15D1207: WorldSocket::Update() (WorldSocket.cpp:448)
   by 0x1427CA3: ReactorRunnable::svc() (WorldSocketMgr.cpp:177)
   by 0x51CBB16: ACE_Task_Base::svc_run(void*) (Task.cpp:271)
   by 0x51CD3BC: ACE_Thread_Adapter::invoke_i() (Thread_Adapter.cpp:161)
   by 0x51CD4D4: ACE_Thread_Adapter::invoke() (Thread_Adapter.cpp:96)
   by 0x4C2B5AD: mythread_wrapper (hg_intercepts.c:219)
   by 0x61DAB4F: start_thread (pthread_create.c:304)

Address 0x49961810 is 16 bytes inside a block of size 80 alloc'd
   at 0x4C286BB: operator new(unsigned long, std::nothrow_t const&) (vg_replace_malloc.c:316)
   by 0x15D0818: WorldSocket::open(void*) (WorldSocket.cpp:237)
   by 0x1429560: ACE_Acceptor<WorldSocket, ACE_SOCK_Acceptor>::activate_svc_handler(WorldSocket*) (Acceptor.cpp:347)
   by 0x142916D: ACE_Acceptor<WorldSocket, ACE_SOCK_Acceptor>::handle_input(int) (Acceptor.cpp:429)
   by 0x515F48D: ACE_Dev_Poll_Reactor::dispatch_io_event(ACE_Dev_Poll_Reactor::Token_Guard&) (Dev_Poll_Reactor.inl:86)
   by 0x5161653: ACE_Dev_Poll_Reactor::handle_events(ACE_Time_Value*) (Dev_Poll_Reactor.cpp:1015)
   by 0x51ACCFC: ACE_Reactor::run_reactor_event_loop(ACE_Time_Value&, int (*)(ACE_Reactor*)) (Reactor.cpp:267)
   by 0x1427C57: ReactorRunnable::svc() (WorldSocketMgr.cpp:170)
   by 0x51CBB16: ACE_Task_Base::svc_run(void*) (Task.cpp:271)
   by 0x51CD3BC: ACE_Thread_Adapter::invoke_i() (Thread_Adapter.cpp:161)
   by 0x51CD4D4: ACE_Thread_Adapter::invoke() (Thread_Adapter.cpp:96)
   by 0x4C2B5AD: mythread_wrapper (hg_intercepts.c:219)
DB/SAI: Fix quest credit for quest "Laying Waste to the Unwanted"
Merge pull request #10563 from Ascathor/master

Core/Account: Make account password change security variable and various changes
Merge pull request #10696 from jackpoz/socket_race_condition

Core/Socket: Fix race condition in WorldSocket
Merge branch 'master' of https://github.com/TrinityCore/TrinityCore.git
Revert "Añadido Gunship Battle, hay que probrar he ir solucionando los crashes."

This reverts commit a73dca788bb0f4d1fc9c0a7439d9d6d6636df5f9.