building IPC file from scratch

As part of the upgrade to RCG2.8.5 I am taking the opportunity to rebuild the H1.ipc file from scratch because it contains a lot of orphaned channels and jumps in channel numbering.

I wrote a script to parse the H1.ipc INI file, compressing each channel into a single line so we can do diff,awk,sed type operations on it (script is parseIpcIniFile)

Here are the orphaned channels which are being removed (Qty 40):