Add annotation player

[glmdgrielson]

This addresses issue #110. Yay for adding annotations back!

This should do until the archive system gets revamped.

[omarroth]

Great!

I'll plan on adding an updated version of videojs-youtube-annotations.js before merging, since there's quite a few features missing that are included in the extension it's based on.

The /api/v1/annotations/:id is temporary and will also change once everything has been uploaded to the Internet Archive.

https://dev.invidio.us is now pulling from this branch, so if annotations for a video are available from the temporary API, you should be able to view them.

[glmdgrielson]

So the video issue gas been resolved? What about the 4.3 one?

[omarroth]

I expect that will be fixed in afrmtbl/annotationlib.

[glmdgrielson]

Why aren't we using the <%= video.id %> here?

[omarroth]

<%= video.id %> refers to the current video. For annotations, we want to find the video that's being linked, so we use the video ID included in the search parameters.

[AgentGrady]

Several videos that had working annotations on invidious just a few days ago have suddenly stopped working. Why is this?

[omarroth]

Mind posting the output of the console or linking to an example?

[AgentGrady]

Ok, here are some examples

https://dev.invidio.us/watch?v=29-q7YnyUmY

https://dev.invidio.us/watch?v=FBeuzMM7HSc

https://dev.invidio.us/watch?v=gf5YT60DaqQ

[AgentGrady]

Annotations have suddenly stopped working on several videos.

https://dev.invidio.us/watch?v=FBeuzMM7HSc&iv_load_policy=1

https://dev.invidio.us/watch?v=hf3CHubs_Wc

https://dev.invidio.us/watch?v=j64LcepmarY

[github-actions]

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