Add two-way clipboard sharing option

[peterzahemszky]

The introduction of bidirectional copy and paste functionality would be really valuable for debugging as well as end users

[peterzahemszky]

The sixth screenshot on the noVNC website suggests that clipboard sharing is possible: https://novnc.com/screenshots.html

A solution for clipboard transfer is available. Text copied in the remote desktop will appear in the clipboard box in noVNC's interface. You can then copy the text from that box to access it in your local clipboard. Any text put into the clipboard box will be sent to the remote clipboard as well.

Personally I don't know whether this feature is available in the noVNC version we're currently using for Simphony Remote

[peterzahemszky]

the noVNC version we're currently using for Simphony Remote

We seem to be using noVNC version 0.5.1

https://github.com/simphony/simphony-remote-docker-base/blob/72f120e7ed34b0f2d6171dc05426be0716d00c07/wrappers/vncapp/container-files/noVNC/package.json#L1-L4