Implements extended API for creating `RtcRtpTransceivers` #1671

Job	Run time
build (macos)	59s
build (linux)	54s
clippy (linux)	3m 11s
dartanalyze	52s
build (windows)	58s
clippy (macos)	1m 1s
clippy (windows)	50s
dartfmt	1m 2s
ktfmt	11s
rustdoc (linux)	1m 3s
rustdoc (macos)	1m 0s
swiftformat	21s
rustfmt	16s
rustdoc (windows)	32s
test (example, ${{ matrix.platform }})	1s
pr	1s
dart pub publish (pub.dev)	1s
release (GitHub)	1s
	13m 14s

Provide feedback