Seperate bpl from bdsh src

[logandhillon]

Move the BadOS Dynamic Shell Package Library (bpl) to it's own repo, to have it's source unrelated to the bdsh source.

This will also allow people to upload their own packages via PRs.

• Make sure to document how to publish packages
• Documentation should still be managed by the bdsh repo, the bpl repo should have a package search webapp

[logandhillon]

See the bpl repo at https://github.com/badtechnologies/bpl