Added shader on placement. Added sound on drag (block placement sound).

Added line.
Highlight currently selected in radial menu (with colors).
Fixed scaling of icons.
Refactored RenderHandler into 3 classes and SurvivalHelper.
Added classes and icons for diagonal line, diagonal wall, slope floor and cube.

src/main/resources/assets/effortlessbuilding/sounds.json

@@ -0,0 +1,11 @@
+{
+  "build_click": {
+    "category": "block",
+    "subtitle": "effortlessbuilding.subtitle.build_click",
+    "sounds": [ 
+		{
+			"name": "effortlessbuilding:build_click"
+		}
+	]
+  }
+}