Support VideoStation API and others

[hashar]

From a discussion on a1ea1bde1

synolopy is missing support for the VideoStation API among other, the main reason being that Synology did not publish a documentation (although they wrote very nice documentation for some other API).

I found a coffee script implementation https://github.com/JimRobs/syno/tree/master/src/syno Looks like they already reverse engineered VideoStation ( https://github.com/JimRobs/syno/blob/master/src/syno/VideoStation.coffee ) and VideoStationDTV ( https://github.com/JimRobs/syno/blob/master/src/syno/VideoStationDTV.coffee ) APIs. So it might just be about copy pasting (with proper authorship).

See also the related wiki page https://github.com/JimRobs/syno/wiki/Video-Station-API