Update sprites sample

samples/02.sprites/units/camera.unit

@@ -1,7 +1,16 @@
 {
-	"camera" : [
+	"cameras" : [
 		{
-			"name" : "camera"
+			"name" : "camera",
+			"node" : "root"
+		}
+	],
+	"nodes" : [
+		{
+			"name" : "root",
+			"parent" : null,
+			"position" : [0, 0, 1],
+			"rotation" : [0, 0, 1, 0]
 		}
 	]
 }

samples/02.sprites/units/circle.unit

@@ -1,10 +1,19 @@
 {
-	"renderable" : [
+	"renderables" : [
 		{
+			"name" : "circle",
+			"node" : "root",
 			"type" : "sprite",
 			"resource" : "sprites/circle",
-			"name" : "circle",
 			"visible" : true
 		}
+	],
+	"nodes" : [
+		{
+			"name" : "root",
+			"parent" : null,
+			"position" : [0, 0, 0],
+			"rotation" : [0, 0, 1, 0]
+		}
 	]
 }

samples/02.sprites/units/pentagon.unit

@@ -1,10 +1,19 @@
 {
-	"renderable" : [
+	"renderables" : [
 		{
+			"name" : "pentagon",
+			"node" : "root",
 			"type" : "sprite",
 			"resource" : "sprites/pentagon",
-			"name" : "pentagon",
 			"visible" : true
 		}
+	],
+	"nodes" : [
+		{
+			"name" : "root",
+			"parent" : null,
+			"position" : [0, 0, 0],
+			"rotation" : [0, 0, 1, 0]
+		}
 	]
 }

samples/02.sprites/units/square.unit

@@ -1,10 +1,19 @@
 {
-	"renderable" : [
+	"renderables" : [
 		{
+			"name" : "square",
+			"node" : "root",
 			"type" : "sprite",
 			"resource" : "sprites/square",
-			"name" : "square",
 			"visible" : true
 		}
+	],
+	"nodes" : [
+		{
+			"name" : "root",
+			"parent" : null,
+			"position" : [0, 0, 0],
+			"rotation" : [0, 0, 1, 0]
+		}
 	]
 }

samples/02.sprites/units/star.unit

@@ -1,10 +1,19 @@
 {
-	"renderable" : [
+	"renderables" : [
 		{
+			"name" : "star",
+			"node" : "root",
 			"type" : "sprite",
 			"resource" : "sprites/star",
-			"name" : "star",
 			"visible" : true
 		}
+	],
+	"nodes" : [
+		{
+			"name" : "root",
+			"parent" : null,
+			"position" : [0, 0, 0],
+			"rotation" : [0, 0, 1, 0]
+		}
 	]
 }