OT Hybrids Test Dev
This merge includes:
- Some more functions to use the lpgbt ADC (to obtain correct voltages with a trimmed Vref), RSSI
- Latest 2S SEH hybrid test code
- For SEH and ROH testing choose FMC and link Id via command line arguments (missing a good approach to make the software detect the right link in an automated way). GUI needs a mapping of the backplane slots to the FC7