* inclusion: split PendingAvailability storage into descriptor and commitments
* inclusion: fix tests
* implementers-guide: update CandidatePendingAvailability type
* inclusion: simplify process_candidates a bit
* implementers-guide: more updates to the inclusion module
* inclusion: fix copy-paste errors in tests
* inclusion: revert some of the changes
* inclusion: lazy commitments loading and a test
* guide: revert enact_candidate changes
* inclusion: test process_bitfield for no commitments
* Grammar
Co-authored-by: Robert Habermeier <rphmeier@gmail.com>
Co-authored-by: Robert Habermeier <rphmeier@gmail.com>