FEM-2744: Look for FPS assetId in chunklists if not found in master (#381)
FEM-2744: Look for FPS assetId in chunklists if not found in master (#381)

* Look for FPS assetId in chunklists if not found in master

* Explain the assetId extraction algorithm

* Refactor assetId extraction

kaltura/playkit-ios,kaltura/playkit-ios,kaltura/playkit-ios,kaltura/playkit-ios