Networkable Component References (#1056) * add componentid to IComponent * make component id public - add internal findbyid method, add lookup dict for comp by id * add/remove components from lookup where appropriate * Add VarIComponent to support [Net] IComponent types * Add replicate codegen * VarIComponent -> VarEntityComponent, make ComponentId internal again, remove from IComponent interface. in Replicate..Component search for derived types from EntityComponent * FindById should just return an EntityComponent now