Update lua functions calling functions, moved most of their common code in inline helper functions, simplify some code flow logic, use raw string literals when formatting strings
Currently the core just deallocated the internal object without doing nothing lua side, thus allowing the api to access invalid memory locations previously pointed by referenced objects. Added dummy `deleted` object that will take the place of any deleted lua/c object, raising errors when the api tries to read a lua_obj from the lua stack, so that the address pointed by the lua object will always be valid.
Also fixed possible crash when the label object passed to an EFFECT_TYPE_GRANT effect wasn't a valid effect.
Remove global duel::strbuffer, this was a leftover from the old message handling, directly pass the string from lua to the callback function, and use local buffers when formatting is needed.
Have base class lua_obj also register the type of the parameter, so that we don't have to rely on calling lua functions, but the value of teh struct can be directly checked
