Implement Image functions

[seanpmorgan]

Per the RFC, we will be moving several of the image modules from contrib to addons:

• dense_image_warp
• random_hsv_in_yiq
• adjust_hsv_in_yiq
• rotate
• translate
• angle_to_projective_transforms
• translations_to_projective_transforms
• transform
• compose_transforms
• flat_transforms_to_matricies
• connected_components
• sparse_image_warp

This will involve moving the code base and modifying test cases to run in TF2.

[supercontracts]

Cool i will began with this then :)

[facaiy]

@tabshaikh Thanks, Tabish. Don't put all in one PR. You can solve those functions one by one, say, rotate at first.

[supercontracts]

Okay sure

[facaiy]

@tabshaikh Hi, Tabish. Which op are you working on?

[supercontracts]

I have started with rotate

[WindQAQ]

Hi @tabshaikh, I'm going to work on dense_image_warp and I hope that you have not started on this one.

[hksonngan]

Is anyone working on connected_components? If not I will start with it?

[facaiy]

@hksonngan Great, go head! All contributions are welcome, thanks :-)