Update `npm ls` to use `Arborist`

[darcyclarke]

• investigate how npm fund was migrated
• implement the current behavior of npm v6

[ruyadorno]

Backed from the work on this until we can figure out in a more fundamental level how to move forward with breaking changes in v7, made the effort of documenting the surface of arguments/features of npm ls in particular: https://github.com/npm/cli/blob/848d959b1c5512a3b2f8f25fe6aa3c3a1cfe3879/notes/lib/ls.md

[darcyclarke]

Update: This work was completed via the following PRs:

• fix: npm ls --parseable --long output cli#1547
• npm ls arborist rewrite cli#1545
• tests: refactor ls tests cli#1512