* [Fix] Replace _loadingRequest instance with _loadingRequests dictionary to support multiple concurrent requests
* Remove stored finished requests from dictionary
* Keep contentId as is, and send loadingRequest.url in licenseUrl.
* Update DRM.md
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Co-authored-by: Facundo Gutierrez <facundo.gutierrez@tcc.com.uy>
Converts iOS implementation from Objective-c to Swift
# During the conversion process some updates to the code structure were also made
- Modularize codebase from single file to smaller focused files
- Untangled large nested IF statements
- Added more null checks, since Swift is more strict with null pointers
- Added property to allow for decoding of local video sources with self contained key for offline playback
- Updates example apps to test react-native 0.63.4 and uses auto native dependency imports for android and ios