[BROKEN] Work on multi-strife continued; interface, refactored.

However, values are still not stored and image export is still broken.
The app is nigh useless in this state.
[BROKEN] Data is now actually tied with selected weapon.

Also, sensitivity/focus improvements. Still no save/export, though.
[BROKEN] More intuitive strife additions.
[BROKEN] Added option for Windows build.
[BROKEN] Reordered strife and skills tabs, and refactored them in separate files.