BUG: Fix spelling for AzimuthalEquidistantConversion and LambertAzimuthalEqualAreaConversion

[snowman2]

• Closes pyproj.crs.coordinate_operation.AzumuthalEquidistantConversion is misspelled #882
• Tests added
• Fully documented, including history.rst for all changes and api/*.rst for new API

[codecov]

Codecov Report

Merging #884 (1ba8063) into master (d31926f) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #884      +/-   ##
==========================================
+ Coverage   95.21%   95.23%   +0.02%     
==========================================
  Files          21       21              
  Lines        1672     1680       +8     
==========================================
+ Hits         1592     1600       +8     
  Misses         80       80              

Impacted Files	Coverage Δ
pyproj/crs/_cf1x8.py	98.66% <100.00%> (ø)
pyproj/crs/coordinate_operation.py	100.00% <100.00%> (ø)

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