Core/Commands: Add .npc info mechanicImmuneMask infos
Core/Commands: Add .npc info more infos for unit_flags
Core/Items: Correct randomProperlyId type when reading to/from DB

Ref #10446
Merge branch 'master' of github.com:TrinityCore/TrinityCore
Core: Random changes
Merge branch 'master' of github.com:TrinityCore/TrinityCore into 4.3.4

Conflicts:
	src/server/scripts/Commands/cs_npc.cpp