Ensure proper playback on iPhone Safari. This browser will automatically play videos in fullscreen if "playsinline" is not set even if the video is never added to the DOM

Workaround added for Safari blocking playback. Playback will resume on first onclick / tab event received

Fix for Safari / Firefox connection issues by buffering ice candidates until setRemoteDescription has been called successfully
Updated third party components

* videoinput updated with optimization & scaling support & addcanvas support for c#
* support copy video images to webgl textures
* added a webgl rendering example based on mozillas webgl samples
* V1.985
* updated dependencies

fixed camera access issues on latest Chrome release + changed version to V1.9845 + updated dependencies

update package.json for usage as npm package. set the version to 1.9844.0 (compatible to 0.9844 of the asset)

Experimental! Added first video_input prototype and introduced the Media class to abstract all further access to Media devices
* new VideoInput class allows adding canvas elements that are then treated like a video device similar to the DeviceAPI
* a new canvas can be added as video device via Media.SharedInstance.VideoInput.AddCanvasDevice("canvas", canvas);
* the new Media class delegates getUserMedia and GetVideoDevices either to DeviceApi or VideoInput depending on the device names used
* the Unity plugin uses the Media class now instead of the DeviceApi
* On startup the unity plugin will get the first canvas element in the document and add it to VideoInput for testing via Unity (there is no C# API yet)
* added tests for the new features + general cleanup to allow the tests to run in firefox with fake media turned on

* updated version number to the latest asset version 0.984.4
* updated npm dependencies for security fixes
* updated to ES2016 libraries. Java Script output needs to remain on ES2015 though as Unity 2019.2 builds will fail otherwise
* Bugfix: Make sure all connections are cut on shutdown. In experimental conference mode some connections could remain active after shutdown if some references were kept alive
* Made sure the disconnect method will check the actual id not expect the exact reference of the internal ConnectionId
* added warnings if the user tries to send invalid messages (0 length, null or invalid message id)

Upgraded webpack and other depdencies due to npm warning (https://www.npmjs.com/advisories/803) + print error message if the browser autoplay feature blocks the video replay

* Cleanup callapp for easier use
* Support for async init to have video devices available from the first frame
* better work with recent Chrome changes and if loaded via http / file: url’s (mediaDevices null)
* Will fail now during init some WebRTC features aren’t available to avoid cryptic error messages during runtime
* Added GetBufferedAmount

Fixed an error that was triggered if a call was destroyed immediately after a video stream was created but before the video actually started + fixed swapped audio / video toggles in the examples