* Fix various performance issues reported by cppcheck + code style (CI)
* Make CI happy with code style on master
* guiFileSelectMenu: remove useless includes
* some performance fixes pointed by cppcheck
* remove some useless casts
* TextDest: remove unused setFormSpec function
* Fix various iterator post-increment reported by cppcheck
* rename GameScripting to ServerScripting
* Make getBuiltinLuaPath static serverside
* Add on_shutdown callback
* Add on_receiving_chat_message & on_sending_chat_message callbacks
* ScriptApiBase: use IGameDef instead of Server
This permits to share common attribute between client & server
* Enable mod security in client side modding without conditions