Use package prefix remapping for version shade relocation

Add the version shading using prefix matching instead of listing
every single OBC class in the mapping file.

Requires updated upstream projects:

md-5/SpecialSource@78494b5ff1d5e6719950ec745f3da70127e367f0
agaricusb/SpecialSourceMP/@61473f127a41735b9092f9a7f31d5f50b6346634