Core: Few fixes for previous commit.
Core/NetworkIO: Allow CMSG_CHAR_ENUM after char creation and char deletion

Perhaps these calls could be better placed but it's a matter of trial
and error to see what is most effective.
Implement SMART_ACTION_GAME_EVENT_STOP (111) and SMART_ACTION_GAME_EVENT_START (112).
Merge pull request #10666 from xjose93/SmartScripts-StartEvent

 Implement SMART_ACTION_GAME_EVENT_STOP (111) and SMART_ACTION_GAME_EVENT_START (112).
DB/Loot: Titanium Vein

By @dr-j fixes #10671