add USGS file and sensor interface

[ghost]

related to oceanmodeling/searvey#14

[codecov]

Codecov Report

Merging #23 (646f50d) into main (0d6ae21) will decrease coverage by 1.98%.
The diff coverage is 66.81%.

❗ Current head 646f50d differs from pull request most recent head 88956b7. Consider uploading reports for the commit 88956b7 to get more accurate results

@@            Coverage Diff             @@
##             main      #23      +/-   ##
==========================================
- Coverage   91.92%   89.94%   -1.99%     
==========================================
  Files          19       22       +3     
  Lines        1895     1949      +54     
==========================================
+ Hits         1742     1753      +11     
- Misses        153      196      +43     

Impacted Files	Coverage Δ
stormevents/usgs/sensors.py	0.00% <0.00%> (ø)
stormevents/usgs/highwatermarks.py	93.49% <50.00%> (+6.78%)	⬆️
stormevents/usgs/events.py	78.34% <78.34%> (ø)
stormevents/stormevent.py	95.48% <100.00%> (ø)
stormevents/usgs/__init__.py	100.00% <100.00%> (ø)
stormevents/usgs/base.py	100.00% <100.00%> (ø)
tests/test_coops.py	100.00% <100.00%> (ø)
tests/test_usgs.py	100.00% <100.00%> (ø)

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