[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/application.fam

@@ -0,0 +1,17 @@
+App(
+    appid="main_apps",
+    name="Basic applications for main menu",
+    apptype=FlipperAppType.METAPACKAGE,
+    provides=[
+        "gpio",
+        "ibutton",
+        "infrared",
+        "lfrfid",
+        "nfc",
+        "subghz",
+        "bad_usb",
+        "u2f",
+        "fap_loader",
+        "archive",
+    ],
+)