update(PlotCrossSection): add additional flexibility to cross sectional plotting

[jlarsen-usgs]

• new feature: view, users can optionally provide view="x" or view="y" to force the view angle of the cross section
• fix: add in initial and end line points to the intersection routine which can include an additional cell on each side of cross section
• add uint support for Raster class

[codecov]

Codecov Report

❌ Patch coverage is 42.85714% with 12 lines in your changes missing coverage. Please review.
✅ Project coverage is 72.6%. Comparing base (556c088) to head (6da1ee2).
⚠️ Report is 182 commits behind head on develop.

Files with missing lines	Patch %	Lines
flopy/utils/rasters.py	0.0%	12 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2782      +/-   ##
===========================================
+ Coverage     55.5%    72.6%   +17.1%     
===========================================
  Files          644      660      +16     
  Lines       124135   132321    +8186     
===========================================
+ Hits         68947    96138   +27191     
+ Misses       55188    36183   -19005     

Files with missing lines	Coverage Δ
flopy/plot/crosssection.py	64.6% <100.0%> (-2.5%)	⬇️
flopy/plot/plotutil.py	52.1% <100.0%> (-4.7%)	⬇️
flopy/utils/rasters.py	70.0% <0.0%> (-4.0%)	⬇️

... and 577 files with indirect coverage changes

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[jlarsen-usgs]

Updates made from discussion #2778