Adding ImageToPolyDataFilter, RGBToHSI, RGBToHSV, RGBToYIQ, ImagePlaneWidget

src/Cxx/Images/RGBToYIQ.cxx

src/PythonicAPI.md

src/PythonicAPI/Images/ImageOpenClose3D.py

src/PythonicAPI/Images/ImageToPolyDataFilter.py

src/PythonicAPI/Images/RGBToHSI.md

src/PythonicAPI/Images/RGBToHSI.py

src/PythonicAPI/Images/RGBToHSV.md

src/PythonicAPI/Images/RGBToHSV.py

src/PythonicAPI/Images/RGBToYIQ.md

src/PythonicAPI/Images/RGBToYIQ.py

src/PythonicAPI/Widgets/ImagePlaneWidget.py

...Testing/Baseline/Cxx/Images/TestImageToPolyDataFilter.png

src/Testing/Baseline/Cxx/Images/TestRGBToYIQ.png

...Baseline/PythonicAPI/Images/TestImageToPolyDataFilter.png

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

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

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

...ing/Baseline/PythonicAPI/Widgets/TestImagePlaneWidget.png