Candidate: Milestones 1 & 2

This release satisfies the conditions of Milestones 1 & 2 according to the Grant Proposal Snapshot.

What's Changed

• Support for Multiple Sources & Destinations in a Single Config by @bh2smith in #63
• Documenting Functions & Classes by @bh2smith in #65
• Treat Unknown Types as JSONB by @bh2smith in #64
• Dune: real and decimal(32,0) by @mooster531 in #66
• Update Readme by @bh2smith in #70

Full Changelog: v0.0.2...v0.1.0