Moved the SIO files to a new sio/ folder.
Added the 'version.h'stuff, added Makefile rule to generate the Manifest file for Windows.
Re-worked the About dialog - it now includes more info.
Several cleanups and fixes here and there.
Updated (Windows) UI to properly handle resets and changes in Settings.
Updated to no longer scan for roms at startup.
One string resource was longer than 256 characters, one duplicate
string ID was fixed, and one key definition was spitting out errors.
The about text will at some point have to be replaced with two separate
string labels, for now I fixed just enough to get it to open in MSVC
