v0.15.0 - CLI Queries and Configuration Management

Adds

#266 - Cascade now has configuration management system!
#268 - You can query experiment results right in your CLI
#269 - Confirm before removing artifacts

Enhances

#267 - Removes the dependency on unmaintained flatten-dict (Thanks to @SlideForSlice)
#270 - Missing init call bug
#272 - Handle removes in the middle of Repo and ModelLine

New Contributors

• @SlideForSlice made their first contribution in #265

Full Changelog: v0.14.2...v0.15.0