MCServer Lua implementation

[FakeTruth]

So I tested using a single Lua instance/stack and it works, but it's not perfect. For instance values stored in the 'self' table cannot be accessed from anywhere outside of a plugin function, or it'll try to access its own self table. Meh this doesn't sound very clear. Basically you need to put everything in global variables if you want to be able to access it from a different plugin, this brings the issue of name collisions....