* progress on tesscut code

* send warnings, return array of filepaths

* More generalization, print messages

* comment fix

* style fixes

fix type annotation

* rename module, use same thread number for cube_cut

Use json.load()

documentation, set threads to 8 for cube_cut

* unit tests, don't allow cutout size of 0

* fix example in docstring

* Use mock in unit tests

* rename mock

* documentation, fix cache position

* remove thread pool, filter ffi footprint files in test data

* Add cachetools as requirement

* work-around for footprint files using TAP

* Remove mock from footprint tests

* Delete sample footprints

* remove cloud function, make crossmatch and ffi fetch functions public

* Remove CIRCLE from example inputs

* parametrize tests

…hind file