Add Scripts/KIDSPatchParser.py

Add new script to parse KIDS builds for information contained within.
Currently supports extracting routines from both builds and multi-builds.
It is not smart enough to determine what routines belong in what build.

Change-Id: Ia958c352f2d1a4aa43a999cb5446cda6b6b2016b
KIDSPatchParser: Add checksum support

This is a first pass at adding checksum support.  Include logic similar
to Chris Uyehara's java version at <http://code.vistaehr.com/skids/src>.

Thanks to Chris Uyehara for the example!

Change-Id: Id38bc44b8bb07db4e9437f8e65170c2e80b69ffc