[FL-2627] Flipper applications: SDK, build and debug system (#1387)

* Added support for running applications from SD card (FAPs - Flipper Application Packages)
* Added plugin_dist target for fbt to build FAPs
* All apps of type FlipperAppType.EXTERNAL and FlipperAppType.PLUGIN are built as FAPs by default
* Updated VSCode configuration for new fbt features - re-deploy stock configuration to use them
* Added debugging support for FAPs with fbt debug & VSCode
* Added public firmware API with automated versioning

Co-authored-by: hedger <hedger@users.noreply.github.com>
Co-authored-by: SG <who.just.the.doctor@gmail.com>
Co-authored-by: あく <alleteam@gmail.com>

applications/services/gui/icon_animation_i.h

@@ -0,0 +1,39 @@
+/**
+ * @file icon_animation_i.h
+ * GUI: internal IconAnimation API
+ */
+
+#pragma once
+
+#include "icon_animation.h"
+
+#include <furi.h>
+
+struct IconAnimation {
+    const Icon* icon;
+    uint8_t frame;
+    bool animating;
+    FuriTimer* timer;
+    IconAnimationCallback callback;
+    void* callback_context;
+};
+
+/** Get pointer to current frame data
+ *
+ * @param      instance  IconAnimation instance
+ *
+ * @return     pointer to current frame XBM bitmap data
+ */
+const uint8_t* icon_animation_get_data(IconAnimation* instance);
+
+/** Advance to next frame
+ *
+ * @param      instance  IconAnimation instance
+ */
+void icon_animation_next_frame(IconAnimation* instance);
+
+/** IconAnimation timer callback
+ *
+ * @param      context  pointer to IconAnimation
+ */
+void icon_animation_timer_callback(void* context);