Anyone with basic knowledge of CSS will easily figure out how to
customise the appearance of the UI, so remove the burden of having
to maintain these extra style sheets.
The control bar can be dragged to the other side, this isn't obvious
however. This adds a hint on the opposite side in the form of a
silhouette of the control bar.
This commit restructures noVNC, splitting it into the core directory
and the app directory, with the former containing core noVNC parts,
and the latter containing parts specific to the application.
Samuel Mannehed