JDK sdk

Hi! Would it be possible to release openwebrtc-android-sdk as regular java api? Maybe extract the components that are unspecific to android and cross-release it as a seperate jar? Most of the SDP rendering/parsing and certificate related stuff would be really useful for [jvm users](https://github.com/danielwegener/openwebrtc-java) too!

So would it be feasible to release the "core" as platform independent jar and inject the specifics depending on the runtime?

I did a quick [poc](https://github.com/danielwegener/openwebrtc-android-sdk/commit/1b69c74dfedeeb28067a23ebd563fa6f7489d0ec) to show what classes are android specific - and they are [not so many](https://github.com/danielwegener/openwebrtc-android-sdk/tree/kick-android/sdk/src/main/java/android).

Best regards

Start by reviewing the referenced proof-of-concept commit and the classes under sdk/src/main/java/android to identify the Android-specific components. Compare those classes with the SDP rendering/parsing and certificate-related components mentioned in the issue. Done means the feasible scope and design for a platform-independent JVM jar, with runtime-specific behavior separated, are established.

Written by the indexing model from the issue text.