[GOBBLIN-1333] Add Github metadata for Apache Gobblin
[GOBBLIN-1333] Add Github metadata for Apache Gobblin

Closes #3169 from abti/master

abti/gobblin,abti/gobblin,arjun4084346/gobblin,jack-moseley/gobblin,arjun4084346/gobblin,linkedin/gobblin,jack-moseley/gobblin,abti/gobblin,abti/gobblin,shirshanka/gobblin,abti/gobblin,shirshanka/gobblin,jack-moseley/gobblin,shirshanka/gobblin,arjun4084346/gobblin,arjun4084346/gobblin,linkedin/gobblin,linkedin/gobblin,linkedin/gobblin,linkedin/gobblin,abti/gobblin,linkedin/gobblin,jack-moseley/gobblin,shirshanka/gobblin,shirshanka/gobblin,jack-moseley/gobblin,arjun4084346/gobblin