[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>

site_scons/site_tools/blackmagic.py

@@ -63,7 +63,7 @@ class BlackmagicResolver:
         if probe := self.get_serial() or self.get_networked():
             return probe
 
-        raise Exception("Please specify BLACKMAGIC=...")
+        raise StopError("Please specify BLACKMAGIC=...")
 
 
 def generate(env):