Windows 10 Bundle for GNOME 3.20 desktops

Changes since alpha release

• Buttons & other small color bugs corrected
• Checkboxes & radioboxes now fixed and running
• Switches color & slider
• Scrollbar padding
• New shell theme, which will eventually make it to the master branch
• Scale sliders

We still need some help to achieve complete adaptation from the sourcecode. Any feedback / help is appreciated