some code in ru_thread_control, still need to remove redundant code in ru_thread, add the state to ru struct, all ru_thread changes still need to be done

Summary of changes:

- minor changes in RA code (functionality not changed, only notation)
- automatic indentation of some files (with indent -kr)
- bugfixes for TDD in RRU (IF4p5) and timing statistics of fronthaul and
  compression