Add NAC, 0BSD, FSFAP, GFDL, and MS-RL

These appear frequently enough as unknowns in the large-scale-change to
automate detection. Detecting GFDL also enables excluding the embedded
references to CC-BY-SA that are otherwise false positives.

The "Not a contribution" findings have special treatment for the lsc.

Test: m all

Bug: 151953481
Bug: 151177513
Bug: 67772237

Change-Id: I7f83d8a5ca94eadfcc8144c2225ce01232994d47