Move website/clipfish.lua to media/

Signed-off-by: Toni Gundogdu <legatvs@gmail.com>
media/clipfish.lua: Relicense under AGPLv3+

Signed-off-by: Toni Gundogdu <legatvs@gmail.com>
media/clipfish.lua: Rewrite ident function

Rewrite the `ident' function for the libquvi 0.9+ series.
* Add local table `ClipFish', implement `can_parse_url'
* Remove any now obsolete code

Signed-off-by: Toni Gundogdu <legatvs@gmail.com>
media/clipfish.lua: Remove query_formats function

Remove the now obsolete `query_formats' function which is no longer
supported by libquvi 0.9+.

Signed-off-by: Toni Gundogdu <legatvs@gmail.com>
media/clipfish.lua: Rewrite parse function

Rewrite the `parse' function for the libquvi 0.9+ series.
* Parse additional media property `duration_ms'
* Remove now obsolete code (e.g. self.host_id)
* Implement `ClipFish.iter_streams'
* Update vim modeline

Signed-off-by: Toni Gundogdu <legatvs@gmail.com>
tests: Add a test for media/clipfish.lua

Signed-off-by: Toni Gundogdu <legatvs@gmail.com>
Merge branch 'tg/next__media_port_website/clipfish.lua' into next