BUG: Always generate coordinates in rio.reproject when GCPS|RPCS present

[snowman2]

• [x] Closes #517
• [x] Tests added
• [x] Fully documented, including docs/history.rst for all changes and docs/rioxarray.rst for new API

[codecov[bot]]

Codecov Report

Merging #518 (9e8b8b0) into master (7344ea3) will increase coverage by 0.00%. The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #518   +/-   ##
=======================================
  Coverage   96.22%   96.22%           
=======================================
  Files          13       13           
  Lines        1590     1591    +1     
=======================================
+ Hits         1530     1531    +1     
  Misses         60       60           

Impacted Files	Coverage Δ
rioxarray/raster_array.py	97.16% <100.00%> (+<0.01%)	:arrow_up:

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[snowman2]

Thanks @justingruca :+1: