Fix gridder orientation and binning

[tgross03]

• Remove forced rotation and inversion in plots
• Change binning of grid
• Use numpy.float128 to ensure numerical stability
• Add column name optional parameters to FITS import (default now UU, VV)
• Remove flip and invert in create_attributes method

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 57.07%. Comparing base (8607e47) to head (ec6a223).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #19   +/-   ##
=======================================
  Coverage   57.07%   57.07%           
=======================================
  Files          14       14           
  Lines         615      615           
  Branches       64       64           
=======================================
  Hits          351      351           
  Misses        253      253           
  Partials       11       11           

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