Vicky was concerned that the SQZ_SHG stays trying and failing to lock even when the IMC is unlocked. Driving the PZTs unnecessarily and maybe injecting excess light into the fibers.

We edited ISC_LOCK's DOWN to now take SQZ_MANAGER to DOWN and then ISC_LOCK's READY (had to main a main state) to take SQZ_MANAGER to FDS_READY_IFO in.  Previously requested SQZ_MANAGER to FDS_READY_IFO in DOWN.

Also edited SQZ_MANGER's DOWN to take SQZ_SHG and SQZ_PMC to DOWN. Reloaded all guardian. Previously didn't touch them.