[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/archive/helpers/archive_apps.h

@@ -0,0 +1,21 @@
+#pragma once
+
+typedef enum {
+    ArchiveAppTypeU2f,
+    ArchiveAppTypeUnknown,
+    ArchiveAppsTotal,
+} ArchiveAppTypeEnum;
+
+static const ArchiveFileTypeEnum app_file_types[] = {
+    [ArchiveAppTypeU2f] = ArchiveFileTypeU2f,
+    [ArchiveAppTypeUnknown] = ArchiveFileTypeUnknown,
+};
+
+static inline ArchiveFileTypeEnum archive_get_app_filetype(ArchiveAppTypeEnum app) {
+    return app_file_types[app];
+}
+
+ArchiveAppTypeEnum archive_get_app_type(const char* path);
+bool archive_app_is_available(void* context, const char* path);
+bool archive_app_read_dir(void* context, const char* path);
+void archive_app_delete_file(void* context, const char* path);