* azerothcore + eluna done.
* Remove the Eluna single thread limit.
* Read Eluna Settings file.
* submodule change.
* fix(test) Ubuntu - Cant Link Library after Compile
* The ELUNA is disabled by default.
* remove submodule luaEngine.
* some change
* fix a error
* change cmake
* fix: some onplayerchat does not have hooks.
* Eluna: Add BG event Hooks.
* fix:cmake hook AFTER_LOAD_CONF not work.
* Remove the eluna switch.
* Remove some define in the core.
* fix conf file not read in the linux.
* eluna : change bg hook parameter type
* Remove TC log function call
* change bg hook OnBGEnd parameter type.
Note: to enable Eluna, the module is required
For a more educated fix would need to get access to git history for why the hook was moved here.
Or alternatively, try research what would be the correct place for the hook.
