* Refactor the list measurements function to make use of nested queries
With a dataset of 1489 test, the ooniprobe list command went from
taking 17.27s to run, to requiring 0.17s or a 100x speed boost
See https://github.com/ooni/probe/issues/1966
* Remove dead code from actions
* Improve the tests for the ListResults function
* Add test for AnomalyCount
* Add more documentation about the merging of the test_keys
* Add support for tracking the is_uploaded status in the results table
* Add unit tests for measurement upload status
This implements: https://github.com/ooni/probe/issues/1457
* Update cmd/ooniprobe/internal/database/actions.go
Co-authored-by: Simone Basso <bassosimone@gmail.com>
