Added Color Modes

[inxomnyaa]

This pull request aims to add some new options / modes that were previously suggested and make sense to have as an alternative to re-flashing the Nano each time. The color modes overwrite the colors calculated from screen/spot color capturing

Planned Modes / Progress

• [x] Screen zones (the default ambilight behavior)
• [x] Static Color - set all LEDs to a specific color
• [ ] Rainbow - similar to the "random colors" option, but with styles (wave, circle, ping pong)
• [ ] Music - capture audio and change colors accordingly
• [ ] Sleep - for when the monitor is off

Planned Features

• [ ] Proper color input fields (alternative to sliders)
• [ ] Auto mode switching (i.e. when an app is detected to be running)

#109 #50 #53 #65