Properly escape query parameters sent to Kodi

[anohren]

Currently neither the raw URL nor the optional youtube-dl options (including separating whitespace) are percent encoded in the iOS app afaik. That would require URLComponents to which I couldn't find a reference. This is probably not done in the other clients either.

This can create complications before the parameters reach the plugin.

It also requires changes in the plugin which is why I mention it here.