* [build] Better dependency fixer
Separate metrics for dependency selection into three: avoidness (to
strongly steer things away based on tags), a selectable metric, and
score (as an unbiasing heuristic)
Add a way to select targets with the command line to help iterating
Three selectable metrics are implemented:
1. edit distance, so that we tend to select things that don't change the
BUILD file
2. list size, as a way of minimizing dependency lists
3. best overall heuristic score
(1) is useful to avoid changing things that folks have carefully
engineered
(2, 3) help in optimizing the graph
* Automated change: Fix sanity tests
* ???
* Update fix_build_deps.py
Co-authored-by: ctiller <ctiller@users.noreply.github.com>
Craig Tiller