GitLab

* split dit server from default runner

* split dit server from default runner

* update loading functions

* simplify loader functions and runner functions

* simplify code && split dit service

* simplify code && split dit service

* support split server for cogvideox

* clear code.

* support prompt enhancer server

* bugs fixed

* finished prompt enhancer service

* add load_transformer methods for split server

* add service utils

* [feature] support split servers