RemoteDesktop: Switch connection direction and simplify client.

Instead of the server connecting back to a listening client, make it
into a more traditional setup with the server listening on a port and
the client connecting to it.

The client can now either connect directly, unencrypted and without the
ability to trigger listening and specifying a command, or through SSH,
as before with the possibilty to run a target application and causing
the creation of the listener.

With the direction change, there's only the need for one, local, port
forward with SSH, which simplifies things.

Fixed C++11 warnings.

invalid suffix on literal; C++11 requires a space between literal and string macro
[-Werror=literal-suffix]

AppServer: Organize "HWInterface" classes

* Organize interface classes into directories
* Long term this will assist in the multi-head
interface / accelerant changes.
* local draws to the local hw accelerant
* remote draws to a remote connection (???)
* html5 draws to... an html5 canvas?

Fixed C++11 warnings.

invalid suffix on literal; C++11 requires a space between literal and string macro
[-Werror=literal-suffix]

AppServer: Organize "HWInterface" classes

* Organize interface classes into directories
* Long term this will assist in the multi-head
interface / accelerant changes.
* local draws to the local hw accelerant
* remote draws to a remote connection (???)
* html5 draws to... an html5 canvas?