Route videos collection to Videos#list for specified parameters
Merge branch 'feature/videos-list'
Don’t ask for video’s tags again if video has tags

Because of the previous commit, retrieving a collection of videos
might actually return tags, if the collection was authenticated and
the user has permission to see the tags.

Therefore, if a snippet already contains tags, don’t erase them and
load them again: just show the ones already loaded.
Don't read nested videoId from videos#list
Merge pull request #83 from Fullscreen/fix-video-list

Fix video list
FIX Retrieve data for resources by URL

The behavior was broken by 2ee1a69 since that commit changed the way
in which the endpoint was selected: instead of hitting /channels or
/videos, the endpoint was changed to /resources (which does not exist).
Merge branch 'fix-resources'
@wip Adding comparison with youtube_it

[ci skip]