add block 'shadeless' property

res/content/base/blocks/blue_lamp.json

@@ -1,5 +1,6 @@
 {
     "texture": "blue_lamp",
     "emission": [0, 0, 15],
+    "shadeless": true,
     "material": "base:glass"
 }

res/content/base/blocks/green_lamp.json

@@ -1,5 +1,6 @@
 {
     "texture": "green_lamp",
     "emission": [0, 15, 0],
+    "shadeless": true,
     "material": "base:glass"
 }

res/content/base/blocks/lamp.json

@@ -1,4 +1,5 @@
 {
     "texture": "lamp",
-    "emission": [15, 14, 13]
-}
+    "emission": [15, 14, 13],
+    "shadeless": true
+}

res/content/base/blocks/lightbulb.json

@@ -7,5 +7,6 @@
     "rotation": "pipe",
     "light-passing": true,
     "sky-light-passing": true,
+    "shadeless": true,
     "material": "base:glass"
 }

res/content/base/blocks/red_lamp.json

@@ -1,5 +1,6 @@
 {
     "texture": "red_lamp",
     "emission": [15, 0, 0],
+    "shadeless": true,
     "material": "base:glass"
 }

res/content/base/blocks/torch.json

@@ -11,6 +11,7 @@
     "model": "aabb",
     "hitbox": [0.4375, 0.0, 0.4375, 0.125, 0.5, 0.125],
     "light-passing": true,
+    "shadeless": true,
     "obstacle": false,
     "rotation": "pipe"
 }