Add Sublime Text 3 sidebar icons in Soda Light

- Only for Soda Light 3!
- Tweaked the non-retina folder and image icons
Updated icons to Fugue

- New icons
Changed folder icons back to Soda Light

- Folder icons
- Added custom file-type icons
Changed icons + more file-types

- added Espresso-styled icons
- added more file-type icons
- Add markup icons
Merge commit 'a3a1a3b05072810af73051a01c24fe78bba6ed9d'
Added sidebar icons.
Remove some trash.