Layout of basic framework (coauthored by @adrn)
whitespace fixes
revamp of transformation graphs for APE5 scheme
work trying to get tests to go
more transform fixes
fix tests for UnitSphericalRepresentation
fix transformation test failures
typo fix
basic frame stuff now working
added support for no-distance case
test tweaks
Added test_frames
implement frame data and test accordingly
basic repr for frames
Added `realize_frame` and tests
added getitem to frames
adjustment to allow transforms that are the same class
transforms baseline working
additional tests for things that should work
update transformations to match APE5 expectations