add new images to legend controller

Author: David Baum

ui/scripts/Legend/LegendController.js

@@ -6,15 +6,24 @@ var legendController = (function() {
 	let items = [];
 
 	let icons = {
+	    // circles
         redCircle: 	        "scripts/Legend/images/circle_red.png",
         blueCircle: 	    "scripts/Legend/images/circle_blue.png",
         greenCircle: 	    "scripts/Legend/images/circle_green.png",
+        orangeCircle: 	    "scripts/Legend/images/circle_orange.png",
+        blackCircle: 	    "scripts/Legend/images/circle_black.png",
         grayCircle: 	    "scripts/Legend/images/circle_gray.png",
         purpleCircle:       "scripts/Legend/images/circle_purple.png",
         yellowCircle:       "scripts/Legend/images/circle_yellow.png",
         lightBlueCircle:    "scripts/Legend/images/circle_blue_light.png",
+        // cylinders
+        blueCylinderHeight: "scripts/Legend/images/cylinder_blue_height.png",
+        orangeCylinderHeight: "scripts/Legend/images/cylinder_orange_height.png",
+        // gradients
         greenRedGradient: 	"scripts/Legend/images/gradient_green-red.png",
+        // measurements
         circleWidth:        "scripts/Legend/images/circle_width.png",
+        // mouse navigation
         navigation:         "scripts/Legend/images/navigation.png",
         leftMouseButton:    "scripts/Legend/images/left.png",
         rightMouseButton:   "scripts/Legend/images/right.png",