fix/refactor backlight stuff (#394)

* fix/refactor backlight stuff:
- fix colors dont turn of when backlight 0 and black is set
- add option to use not colored backlight
- fix colored backlight not colored on very low color values
- various code style tunings

* apply needed change to wizard

* backlight disabled on static color and efects

* fix warnings

* try fix udp compiler warnings

config/hyperion.config.json.commented

@@ -49,7 +49,8 @@
 	///      * 'gammaRed'/'gammaGreen'/'gammaBlue'  : Gamma value for each channel 
 	///      * 'id'     : The unique identifier of the channel adjustments (eg 'device_1')
 	///      * 'id'     : The unique identifier of the channel adjustments (eg 'device_1')
-	///  	 * 'brightnessMin'   : Minimum brightness (backlight)
+	///  	 * 'backlightThreshold' : Minimum brightness (backlight)
+	///  	 * 'backlightColored'   : backlight with color, instead of white
 	///  	 * 'brightness' : Between 0.0-0.5 the brightness is linearized (white is as bright as red, is as bright as yellow).
 	///						  Between 0.5-1.0 the linearization reduces slowly until it's gone with 1.0 (white is 3x brighter than red, yellow is 2x brighter than red)
 	"color" :
@@ -71,7 +72,8 @@
 				"gammaRed"   : 1.0,
 				"gammaGreen" : 1.0,
 				"gammaBlue"  : 1.0,
-				"brightnessMin"  : 0.0,
+				"backlightThreshold"  : 0.0,
+				"backlightColored"  : false,
 				"brightness" : 0.5
 			}
 		]

config/hyperion.config.json.default

@@ -38,7 +38,8 @@
 				"gammaRed"   : 1.0,
 				"gammaGreen" : 1.0,
 				"gammaBlue"  : 1.0,
-				"brightnessMin"  : 0.0,
+				"backlightThreshold"  : 0.0,
+				"backlightColored"  : false,
 				"brightness" : 0.75
 			}
 		]