Refactored code to make use of new LuaBundle class, this is to bring the implementation closer inline with how EmuThread is implemented, and should now be compatible with multiple emuInstances, if needed. also should make adding support for multiple lua scripts a bit easier as well.
non-exhaustive (but exhausting) list of changes:
* base laid for multiple window support, but will likely require more work to work correctly
* encapsulation of frontend state for proper multi-instance support
* (JIT still needs a fix for the NDS::Current workaround but we can get there later)
* new, more flexible configuration system