Public CI Video Decode and Encode Shell Scripts.

Implemented shell scripts for public CI for Decode and Encode Scenarios.

Added Video encode test script
Added Video decode test script
Added readme document for video validation
Implemented Function for ActiveIP
Implemented Function for wget pull resource
Implemented Functions for untar of resource

Signed-off-by: Abhishek Bajaj <[email protected]>

Author: abbajaj806