Process video from AXI stream

[kowalik-lukasz]

Perform simple video processing block, for example colors invert (RGB->BRG), conversion from one standard to another one (YUV->RGB). Everything has to be tested!

In simulations include the case when valid ready isn't 1.

[kgugala]

please update the description of this task

[MatPasGit]

@kgugala @rw1nkler
Is there anything you would like to be posted in the descriptions/issues by us?

[rw1nkler]

You should answer the following questions:

• What should you do?
• How should you do this (In steps)?
• Why should you do this?
• What is unclear for you?