Gui: Direct Draw API (#2215)

* Furi: allow on-fly thread priority change. Gui: Direct Draw API. DirectDraw debug app.
* Gui: drop input in direct draw
* Furi: handle priority change for starting threads
* DirectDraw: rollback to FreeRTOS primitives for priority change

applications/debug/direct_draw/application.fam

@@ -0,0 +1,10 @@
+App(
+    appid="direct_draw",
+    name="Direct Draw",
+    apptype=FlipperAppType.DEBUG,
+    entry_point="direct_draw_app",
+    requires=["gui", "input"],
+    stack_size=2 * 1024,
+    order=70,
+    fap_category="Debug",
+)