Use mapper to map arbitrary arguments from luaEvent

[CrosRoad95]

Right now you have to manually read arguments:

        var what = luaEvent.Parameters[0].StringValue!;
        var model = (ObjectModel)luaEvent.Parameters[1].IntegerValue!;
        var error = luaEvent.Parameters[2].StringValue!;

But it would be very handy to use luamapper for such use case

if(luaMapper.TryParse(luaEvent, out string what, out ObjectModel model, out string error))
{
  // Ok
}
else
{
  // Error while parsing
}