implementing utils.core tests

[nrweir]

Implementing unit tests for utils.core per #19

[codecov-io]

Codecov Report

Merging #25 into dev will increase coverage by 8.18%.
The diff coverage is 96.07%.

@@            Coverage Diff            @@
##              dev     #25      +/-   ##
=========================================
+ Coverage   21.11%   29.3%   +8.18%     
=========================================
  Files          10      11       +1     
  Lines         554     604      +50     
=========================================
+ Hits          117     177      +60     
+ Misses        437     427      -10

Impacted Files	Coverage Δ
tests/test_utils/test_core.py	100% <100%> (ø)
cw_geodata/utils/core.py	85.71% <100%> (+57.14%)	⬆️
cw_geodata/data/__init__.py	84.61% <60%> (-15.39%)	⬇️

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