Add FLAC to Streaming and Audio sections

[evieluvsrainbows]

Since Firefox has added support (Source) for the FLAC audio codec, I think FLAC should be added to the Streaming and Audio sections, and browsers should be rewarded some points if they support it.

[afmenez]

No codec currently award any points, so this one shouldn't either.

[afmenez]

Chrome 56 was released today with FLAC support too.

[cyrilst]

I also really think FLAC should be added to the Audio Codecs list.

[NielsLeenheer]

FLAC was added for version 9.0, but only for audio, not streaming. I don't think Ogg is supported by any browser using any codec for streaming.