Xml documentation for Calibrated and Non Calibrated SGD Trainer.

[codemzs]

towards #2522

[shmoradims]

[codecov]

Codecov Report

Merging #3392 into master will increase coverage by 0.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #3392      +/-   ##
==========================================
+ Coverage   72.76%   72.78%   +0.01%     
==========================================
  Files         808      808              
  Lines      145452   145452              
  Branches    16244    16244              
==========================================
+ Hits       105842   105866      +24     
+ Misses      35189    35163      -26     
- Partials     4421     4423       +2

Flag	Coverage Δ
#Debug	72.78% <100%> (+0.01%)	⬆️
#production	68.29% <100%> (+0.02%)	⬆️
#test	89.04% <ø> (ø)	⬆️

Impacted Files	Coverage Δ
...oft.ML.StandardTrainers/StandardTrainersCatalog.cs	92.34% <ø> (ø)	⬆️
...crosoft.ML.StandardTrainers/Standard/SdcaBinary.cs	72.95% <100%> (ø)	⬆️
...c/Microsoft.ML.ImageAnalytics/ExtensionsCatalog.cs	16.66% <0%> (ø)	⬆️
src/Microsoft.ML.ImageAnalytics/ImageResizer.cs	84.64% <0%> (ø)	⬆️
src/Microsoft.ML.ImageAnalytics/ImageGrayscale.cs	78.33% <0%> (ø)	⬆️
...rosoft.ML.ImageAnalytics/VectorToImageTransform.cs	76.77% <0%> (ø)	⬆️
...Microsoft.ML.ImageAnalytics/ImagePixelExtractor.cs	82.55% <0%> (ø)	⬆️
src/Microsoft.ML.ImageAnalytics/ImageLoader.cs	84.55% <0%> (ø)	⬆️
...ML.Transforms/Text/StopWordsRemovingTransformer.cs	86.26% <0%> (+0.15%)	⬆️
src/Microsoft.ML.Transforms/Text/LdaTransform.cs	89.89% <0%> (+0.62%)	⬆️
... and 1 more