When it is restarted, and screen saver is active, the clipboard no longer works
correctly.
The desk swap detection routine just below does not work properly when the
desktop goes from screensaver back to normal. If it did, probably this
workaround would not be needed.
- reordered includes to prevent accidental dependencies.
- moved arch specific files into their own folder (easier to include with cmake).
- renamed non-class files to reflect new code style (lower case with underscores).
- using full relative paths for includes (easier for understanding dependencies).
- using #pragma once instead of classic-style header guards.