Add a custom control containing a slider and two labels
Add a helper category for getting rgb
Replace outlets with the new component
Use KVO to change the background

Currently buggy.
Fix a bug that would not paint correctly all the slider backgrounds
Change the value of the slider when the value of the control is set
Send the observation immediately so that the slider background updates early
Update the visual color feedback parts when the color changes
Remove observers
Merge branch 'feature/refactor_views' into develop
Remove unused files
Replace outlets with views created in code
Separate more carefully the logic between setters and getters
Organize folders
Merge branch 'feature/remove_xib' into develop
Uncrustify
Rename ColorComponentView to ColorSlider
Refactor the component type enumeration
Document some properties and rearrange methods