For consistency, move server_handle_glbind from py generator to server.c. We can move them back in the future
name_handler_delete_names is a fragile function, the same id can be added in the deletion list.
Adds hash_contains function. hash_lookup just returns the data associated with the key, however sometimes the data is NULL, in these cases hash_contains is useful
Currently, gpu-proxy does not have control of Array Buffers creation, it is not possible to know if an array buffer object was deleted or if the object id belongs to an array buffer. This patch is the first attempt to fix array buffer problems.