CMR-9266 refactors permission acl filtering

[daniel-zamora]

Small improvements to get-permissions code.

[codecov-commenter]

Codecov Report

Merging #1926 (c651fca) into master (d9b4b73) will decrease coverage by 0.04%.
The diff coverage is 5.17%.

@@            Coverage Diff             @@
##           master    #1926      +/-   ##
==========================================
- Coverage   55.84%   55.80%   -0.04%     
==========================================
  Files         991      991              
  Lines       62496    62530      +34     
  Branches     1518     1521       +3     
==========================================
- Hits        34899    34896       -3     
- Misses      26079    26113      +34     
- Partials     1518     1521       +3     

Impacted Files	Coverage Δ
.../src/cmr/elastic_utils/embedded_elastic_server.clj	12.12% <0.00%> (-0.19%)	⬇️
umm-spec-lib/src/cmr/umm_spec/acl_matchers.clj	65.51% <0.00%> (-2.96%)	⬇️
...pp/src/cmr/access_control/services/acl_service.clj	12.29% <4.34%> (-1.59%)	⬇️
...-lib/src/cmr/redis_utils/embedded_redis_server.clj	87.50% <100.00%> (ø)

... and 3 files with indirect coverage changes