Update COD AB config file customization

[turnerm]

Addresses #147, and supersedes #125.

Make it possible to specify custom COD AB layer names in the configuration file.

[github-actions[bot]]

Unit Test Results

    5 files  ±0      5 suites  ±0   38s :stopwatch: +2s   93 tests +1    93 :heavy_check_mark: +1  0 :zzz: ±0  0 :x: ±0  465 runs  +5  465 :heavy_check_mark: +5  0 :zzz: ±0  0 :x: ±0 

Results for commit a7a7c7dc. ± Comparison against base commit 6206e29f.

:recycle: This comment has been updated with latest results.

[codecov-commenter]

Codecov Report

Merging #162 (a7a7c7d) into develop (6206e29) will increase coverage by 0.11%. The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           develop     #162      +/-   ##
===========================================
+ Coverage    90.58%   90.70%   +0.11%     
===========================================
  Files           19       19              
  Lines         1296     1312      +16     
===========================================
+ Hits          1174     1190      +16     
  Misses         122      122              

Impacted Files	Coverage Δ
src/aatoolbox/datasources/codab/codab.py	97.22% <ø> (ø)
src/aatoolbox/config/countryconfig.py	98.80% <100.00%> (+0.28%)	:arrow_up:

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

[github-actions[bot]]

Test Results

    5 files  ±0      5 suites  ±0   38s :stopwatch: +2s   93 tests +1    93 :heavy_check_mark: +1  0 :zzz: ±0  0 :x: ±0  465 runs  +5  465 :heavy_check_mark: +5  0 :zzz: ±0  0 :x: ±0 

Results for commit 14fc6876. ± Comparison against base commit 8f470aff.