Implement ImageTransform

[cognaiger9]

Add ImageTransform kernels:

• ImageAdjustBrightness (ImageAdjustBrightnessFwdContiguous)
• ImageAdjustHue (Including ImageAdjustHue and ImageAdjustHuecontiguous)
• ImageAdjustSaturation (RGBToGrayscale, RGBToGrayscaleContiguous, BlendContiguous)
• ImageNormalize (ImageNormalizeFwdContiguous)

Detailed performance results are here

Average performance:

ImageAdjustBrightness

	contiguous
float32	3.72
float16	3.15
bfloat16	3.33

ImageAdjustHue

	contiguous	noncontiguous
float32	190.43	28.16
float16	197.85	32.91
bfloat16	214.06	32.18

ImageAdjustSaturation

	contiguous
float32	5.21
float16	2.43
bfloat16	2.34

ImageNormalize

	contiguous
float32	1.97
float16	18.14
bfloat16	1.89