RTCStatsReport - add stats-type features and stats (#18910)

* RTCStatsReport - add all the stats as type-features

* Merge RTCIceCandidatePairStats into RTCStatsReport

* Merge RTCRemoteOutboundRtpStreamStats into RTCStatsReport

* Further separate types

* Merge RTCIceCandidateStats into RTCStatsReport

* Merge RTCRtpStreamStats into RTCStatsReport

* Fix consistency

* Remove unsupported features

* Update data based on upcoming collector test updates

* Firefox doesn't support certificate type

* FF113 supports (some) media-source stats

It adds support for RTCMediaSourceStats (track and kind). Also the default ones like timestamp and ID. Not the ones spcific to video and audio states. Tested with BCD collector.

* FF113 supports peer-connection status

Added in https://bugzilla.mozilla.org/show_bug.cgi?id=1531087
Tested with https://mdn-bcd-collhttps://github.com/mdn/content/issues/26146ector.gooborg.com/tests/api/RTCStatsReport/type_peer-connection
other docs work in

* Updates from the collector

* Remove items that bcd-collector indicates were never implemented

* Replace ranged values to closest reasonable values and mirror

* Fix up type_ versions to match earliest subfeature in them

* Remove the remaining true/false

---------

Co-authored-by: Queen Vinyl Da.i'gyu-Kazotetsu <[email protected]>

Author: hamishwillee