Reorganize assets

assets/assets_windows/apps.json

@@ -0,0 +1,14 @@
+{
+	"env":{
+		"PATH":"$(PATH);C:\\Program Files (x86)\\Steam"
+	},
+	"apps":[
+	{
+		"name":"Steam BigPicture",
+
+		"output":"steam.txt",
+		"detached":["steam steam://open/bigpicture"],
+		"image-path":"./assets/steam.png"
+	}
+	]
+}