Merge pull request #5572 from RosettaCommons/vmullig/simple_threading_mover_changes
Add better support for noncanonicals to the SimpleThreadingMover
This PR:
- [x] Switches the SimpleThreadingMover to use the MutateResidue mover rather than the packer (allowing more diverse mutations to be introduced).
- [x] Adds support for sequences provided as oneletter codes, three letter codes, base names, full names, _etc._
- [x] Adds a series of unit tests for using the SimpleThreadingMover to thread sequences that include non-canonical amino acids, provided as oneletter codes, threeletter codes, base names, or full names.
- [x] Updates the SeqeunceMetric to use enum classes for its modes rather than ordinary enums.
- [x] Restore support for indicating a space (no mutation) with a dash.
- [x] Confirm that `GraftSwitchMoverTests:test_graft_switch_mover_setup`, which was flagging this, now passes.
- [x] Updates documentation for SimpleThreadingMover.