Revocation hotfixes

[sklump]

Publish any pending revocations for rev reg id on any revocation with publish=True.
Recover from revocation failures gracefully.
Allow clearing of pending revocations by rev reg id (null/empty for all) and by cred rev ids (null/empty for all)
Allow for granularity in publication of pending revocations by rev reg id (null/empty for all) and by cred rev ids (null/empty for all).
Demo touch-ups to match.

[nrempel]

Nice, this is great.

Also note @esune I believe this should cure the problem you were seeing without any changes on your end.

[sklump]

... then take the troublesome cred_rev_ids on the rev_reg_id and purge them via clear_pending_revocations API as per issue_credentials/v1_0/routes.py, submitting body

{
    "rrid2crid": {
        "<rev-reg-id>": ["<cred-rev-id>", "<cred-rev-id>", ...]
    }
}

[nrempel]

Looks good to me

[codecov-commenter]

Codecov Report

Merging #579 into master will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #579      +/-   ##
==========================================
+ Coverage   96.45%   96.46%   +0.01%     
==========================================
  Files         247      247              
  Lines       13115    13166      +51     
==========================================
+ Hits        12650    12701      +51     
  Misses        465      465