[FL-2052] New build system based on scons (#1269)

applications/snake_game/application.fam

@@ -0,0 +1,11 @@
+App(
+    appid="snake_game",
+    name="Snake Game",
+    apptype=FlipperAppType.PLUGIN,
+    entry_point="snake_game_app",
+    cdefines=["APP_SNAKE_GAME"],
+    requires=["gui"],
+    stack_size=1 * 1024,
+    icon="A_Plugins_14",
+    order=30,
+)