[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/main/u2f/views/u2f_view.c

@@ -0,0 +1,102 @@
+#include "u2f_view.h"
+#include <gui/elements.h>
+
+struct U2fView {
+    View* view;
+    U2fOkCallback callback;
+    void* context;
+};
+
+typedef struct {
+    U2fViewMsg display_msg;
+} U2fModel;
+
+static void u2f_view_draw_callback(Canvas* canvas, void* _model) {
+    U2fModel* model = _model;
+
+    canvas_draw_icon(canvas, 8, 14, &I_Drive_112x35);
+    canvas_set_font(canvas, FontSecondary);
+
+    if(model->display_msg == U2fMsgNotConnected) {
+        canvas_draw_icon(canvas, 22, 15, &I_Connect_me_62x31);
+        canvas_draw_str_aligned(
+            canvas, 128 / 2, 3, AlignCenter, AlignTop, "Connect me to computer");
+    } else if(model->display_msg == U2fMsgIdle) {
+        canvas_draw_icon(canvas, 22, 15, &I_Connected_62x31);
+        canvas_draw_str_aligned(canvas, 128 / 2, 3, AlignCenter, AlignTop, "Connected!");
+    } else if(model->display_msg == U2fMsgRegister) {
+        elements_button_center(canvas, "OK");
+        canvas_draw_icon(canvas, 22, 15, &I_Auth_62x31);
+        canvas_draw_str_aligned(canvas, 128 / 2, 3, AlignCenter, AlignTop, "Press OK to register");
+    } else if(model->display_msg == U2fMsgAuth) {
+        elements_button_center(canvas, "OK");
+        canvas_draw_icon(canvas, 22, 15, &I_Auth_62x31);
+        canvas_draw_str_aligned(
+            canvas, 128 / 2, 3, AlignCenter, AlignTop, "Press OK to authenticate");
+    } else if(model->display_msg == U2fMsgSuccess) {
+        canvas_draw_icon(canvas, 22, 15, &I_Connected_62x31);
+        canvas_draw_str_aligned(
+            canvas, 128 / 2, 3, AlignCenter, AlignTop, "Authentication successfull!");
+    } else if(model->display_msg == U2fMsgError) {
+        canvas_draw_icon(canvas, 22, 15, &I_Error_62x31);
+        canvas_draw_str_aligned(canvas, 128 / 2, 3, AlignCenter, AlignTop, "Ceritficate error");
+    }
+}
+
+static bool u2f_view_input_callback(InputEvent* event, void* context) {
+    furi_assert(context);
+    U2fView* u2f = context;
+    bool consumed = false;
+
+    if(event->type == InputTypeShort) {
+        if(event->key == InputKeyOk) {
+            consumed = true;
+            if(u2f->callback != NULL) u2f->callback(InputTypeShort, u2f->context);
+        }
+    }
+
+    return consumed;
+}
+
+U2fView* u2f_view_alloc() {
+    U2fView* u2f = malloc(sizeof(U2fView));
+
+    u2f->view = view_alloc();
+    view_allocate_model(u2f->view, ViewModelTypeLocking, sizeof(U2fModel));
+    view_set_context(u2f->view, u2f);
+    view_set_draw_callback(u2f->view, u2f_view_draw_callback);
+    view_set_input_callback(u2f->view, u2f_view_input_callback);
+
+    return u2f;
+}
+
+void u2f_view_free(U2fView* u2f) {
+    furi_assert(u2f);
+    view_free(u2f->view);
+    free(u2f);
+}
+
+View* u2f_view_get_view(U2fView* u2f) {
+    furi_assert(u2f);
+    return u2f->view;
+}
+
+void u2f_view_set_ok_callback(U2fView* u2f, U2fOkCallback callback, void* context) {
+    furi_assert(u2f);
+    furi_assert(callback);
+    with_view_model(
+        u2f->view, (U2fModel * model) {
+            UNUSED(model);
+            u2f->callback = callback;
+            u2f->context = context;
+            return false;
+        });
+}
+
+void u2f_view_set_state(U2fView* u2f, U2fViewMsg msg) {
+    with_view_model(
+        u2f->view, (U2fModel * model) {
+            model->display_msg = msg;
+            return true;
+        });
+}