Initial release

This is the first MVP release, with a focus on minimum :)

This release has a minimal dfu cli with the following commands:

dfu new: Creates a new dfu_config.json for the changes you're about to make. (analogous to npm init)
dfu begin: Creates an initial btrfs snapshot. Call this before you start to make your changes
dfu end: Creates the post-snapshot to stop tracking changes
dfu diff: Uses the before & after snapshots to figure out what pacman programs have been added or removed. This information is saved in the dfu_config.json

What's Changed

• Create a package_config entry by @intentionally-left-nil in #4
• Improve coverage devops by @intentionally-left-nil in #5
• Add initial snapper support by @intentionally-left-nil in #6
• only run display-coverage on pull_requests by @intentionally-left-nil in #7
• Add a CLI entrypoint by @intentionally-left-nil in #8
• Simplify the version_number code by @intentionally-left-nil in #9
• Multiple snapshots by @intentionally-left-nil in #10
• Add helper to query pacman for installed packages by @intentionally-left-nil in #11
• Create CLI commands to start and stop creating snapshots by @intentionally-left-nil in #12
• Diff installed packages by @intentionally-left-nil in #13
• Remove numeric prefix from configs by @intentionally-left-nil in #14
• Don't allow package names with ~, slashes, dots, etc by @intentionally-left-nil in #15
• Switch to proot to mount the snapshots by @intentionally-left-nil in #16
• v0.0.2 by @intentionally-left-nil in #17

Full Changelog: v0.0.1...v0.0.2