volatility3

Merge pull request #1301 from gcmoreira/fix_black_stable_version

fix black stable version issue with Python 3.8

Merge pull request #1299 from volatilityfoundation/1298-printkey-output-confusing-when-key-not-found

Merge pull request #1209 from dgmcdona/dgmcdona/windows-amcache

Merge pull request #1272 from volatilityfoundation/816-port-cmdscan-and-console-plugins-from-vol2-to-vol3-please