Squashed 'FileSystemControls/' content from commit 9b33593

git-subtree-dir: FileSystemControls
git-subtree-split: 9b335934deb820fc42502e2823336e6eb437c7e7
Merge commit '3abbdc22e9ffcae2c37a8f16aa44f497c061e13a' as 'FileSystemControls'
Add FileSystemControls as git-subtree
Adjust project
Add file explorer tool panel