J. Kissel, K. Venkateswara

As described in LHO aLOG 14521, we've added an IPC connection from top-level of ISI to HPI for the GND super-sensor to be used for sensor correction to the h1isietmx and h1hpietmx front end models. In addition, we've cleaned up the few channels:
-  H1:ISI-GND_BRS_ETMX_DAMPCTRLMON1 --> H1:ISI-GND_BRS_ETMX_DAMPCTRLMON
-  H1:ISI-GND_SENSCOR_ROTVELCORR --> H1:ISI-GND_SENSCOR_ETMX_STS_X_ROTVEL
-  H1:ISI-GND_SENSCOR_TORQUECORR --> H1:ISI-GND_SENSCOR_ETMX_STS_X_TORQUE
Finally, we've updated the BRS OVERVIEW screen to reflect the new channel changes, and confirmed that both ISI and HPI see the tilt-corrected ground super sensor in STSC,
H1:HPI-ETMX_STSINF_C_X_OUT   or
H1:ISI-ETMX_ST1_GNDSTSINF_C_X_OUT
calibrated into 1 [(nm/s) / ct] (above 4 [mHz] is you really care that low). Note that this requires the calibration filters in the GNDSTSINF X bank to be turned OFF.

This change required 
- Making sure the current configuration sticks
     - Capture of a new safe.snap
     - Commit the current filter file
- Recompiling, Reinstalling, Restarting, Restoring the h1isietmx and h1hpietmx models
- Restart of the frame builder / data concentrator / h1dc0
- Committing h1isietmx and h1hpietmx top-level models to the userapps repo.

This opens and closes Work Permit 4906.


P.S. Unfortunately, I didn't realize until writing this aLOG that because of our "store the GND STSs once and only once" policy, we're not storing any of the ETMX STS C channels separately in the frames. The only version of the tilt-corrected GND super-sensor stored in the frames (and regrettably only in the commissioning frames) is 
H1:ISI-ETMX_ST1_SENSCOR_GND_STS_X_IIRHP_IN_DQ   or
H1:HPI-ETMX_SENSCOR_X_FIR_IN1_DQ
which is after the H1:HPI-ETMX_STS_INMTRX, or H1:ISI-ETMX_ST1_STS_INMTRX, so it relies on the matrix being selected to use STS C in the X direction. This is currently the case, but we'll most likely consider added a separate test point and channel in the GND_SENSCOR bank next week.