Changes

Update VesselState.cs

There's a bug reported #1860  where RCS keeps turning on when unwanted for non-Real Fuels users and requires turning off AutoRCSUllaging. This may be enough to fix it but this could use other sanity checks elsewhere. Also, RCS ullaging should either

* Check for Core.Attitude.RCS_auto = true or else don't enable RCS!
* Put in code to turn RCS back off when ullaging is completed.
 (commit: d1c0220)