Added DotProduct, ImageDifference, ImageDivergence, ImageEllipsoidSource

src/PythonicAPI.md

src/PythonicAPI/Images/DotProduct.md

src/PythonicAPI/Images/DotProduct.py

src/PythonicAPI/Images/ImageConvolve.py

src/PythonicAPI/Images/ImageDifference.md

src/PythonicAPI/Images/ImageDifference.py

src/PythonicAPI/Images/ImageDivergence.py

src/PythonicAPI/Images/ImageEllipsoidSource.py

src/Testing/Baseline/PythonicAPI/Images/TestDotProduct.png

...sting/Baseline/PythonicAPI/Images/TestImageDifference.png

...sting/Baseline/PythonicAPI/Images/TestImageDivergence.png

.../Baseline/PythonicAPI/Images/TestImageEllipsoidSource.png