* ios: native WebRTC
* add video showing
* make async function better working with main thread
* wrapped code in main actor, just in case
* small change
* a little better
* enable relay
* removed unused code
* allow switching calls
* testing
* enable encryption
* testing more
* another test
* one more test
* fix remote unencrypted video
* deleted unused code related to PixelBuffer
* added MediaEncryption playground
* better playground
* better playground
* fixes
* use new encryption api
* media encryption works
* small changes
* added lib dependency
* use commit reference for lib instead of version
* video format, PIP size
* remove sample.js
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Co-authored-by: Evgeny Poberezkin <2769109+epoberezkin@users.noreply.github.com>