Metadata: Populate reusedCode with forks

[natalialuzuriaga]

Metadata: Populate reusedCode with forks

Expected behavior

If the repository is a fork of a repository, I would like automated-codejson-generator to populate the reusedCode array with that upstream repo it is associated with.

Actual behavior

Currently, the user manually enters this information themselves

[decause-gov]

07/10:

• PR ready for review: Populate reusedCode with fork upstream parent #127 @sachin-panayil
• Then we close!

[decause-gov]

07/13:

• @sachin-panayil review Populate reusedCode with fork upstream parent #127 and then we close when merged.