J. Kissel, E. Goetz

As Evan and I continue to debug / populate the new demodulation of the PCALX calibration lines in order to get a front-end made, real-time estimate of the systematic error in CAL-DELTAL_EXTERNAL (see e.g. LHO:69061), we found and fixed some bugs in yesterday's update of the MEDM user interface for the time-dependent correction factor and systematic error monitoring infrastructure (LHO:68999). 

Some minor typos in the CAL_CS_TDEP_OVERVIEW.adl, but really overhauled the PCAL_LINE.adl DEMOD OVERVIEW screen with the following changes:
    - Increased the precision on the displayed frequency of the oscillator
    - Moved the newish uncommissioned line-subtraction stuff (in the Yellow Box) out of the way, improving the representation of what's happening along the way
    - Flipped (and therefore corrected) the visual representation of how the I and Q inputs to the DARM/PCAL transfer function COMPLEX_RATIO block are shown, 
    - Replaced (and therefore corrected) SUS tags with PCAL tags in the visual representation of I and Q inputs of the denominator of the DELTAL/PCAL transfer function COMPLEX_RATIO block,
    - Updated the graphical representation of the COMPLEX_RATIO between (DARM/PCAL) and (DELTAL/PCAL) with their respective (DARM_CORR/PCAL_CORR) and (DELTAL_CORR/PCAL CORR) corrective transfer function values
    - Showed the rotation between Real / Imaginary to Mag / Phase for the corrected (DELTAL / PCAL) transfer function.
    - Added a bunch of notation defining the physical components of what each of the corrective transfer functions should be.

See attached before vs. after screenshots.

The screens
    /opt/rtcds/userapps/release/cal/common/medm
        CAL_CS_TDEP_PCAL_LINE.adl
        CAL_CS_TDEP_OVERVIEW.adl
have been committed to the repo.