Audit and Automate license scanning of CNCF projects

[idvoretskyi]

FOSSA license scanning for all the repos (that include code) in the CNCF project organizations should be enabled:
https://github.com/fossas/fossa-cli

[caniszczyk]

@idvoretskyi FYI this should be "license scanning" where FOSSA is one option.

We have some projects that use Snyk and WhiteSource already and those are fine options too.

[idvoretskyi]

@caniszczyk good point, thanks!