* Add Updated GPAC
File changes have been directly inserted from libGPAC master into ccextractor's libGPAC.
This has resulted into removal of multiple custom functions and minor changes. These will be rectified in the next step of the updation.
Change severity: Very High
* Update libGPAC dependency
We use libGPAC for all our MP4 operations and, this commit updates it to the latest version.
All previous changes to the original library were restored post straight file updation and bugs have been removed.
change severity: very high
* Add Guide To Updating Dependencies
A small textual guide on how to update dependencies easily and efficiently.
