[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/commandline.scons

@@ -68,6 +68,11 @@ vars.AddVariables(
             "7",
         ],
     ),
+    BoolVariable(
+        "DEBUG_TOOLS",
+        help="Enable debug tools to be built",
+        default=False,
+    ),
 )
 
 vars.Add(
@@ -186,21 +191,17 @@ vars.Add(
     help="Map of (configuration_name->application_list)",
     default={
         "default": (
-            "crypto_start",
             # Svc
             "basic_services",
             # Apps
-            "basic_apps",
-            "updater_app",
-            "archive",
+            "main_apps",
+            "system_apps",
             # Settings
-            "passport",
-            "system_settings",
-            "about",
+            "settings_apps",
             # Plugins
-            "basic_plugins",
+            # "basic_plugins",
             # Debug
-            "debug_apps",
+            # "debug_apps",
         )
     },
 )
@@ -211,4 +212,26 @@ vars.Add(
     default="default",
 )
 
+vars.Add(
+    "APPSRC",
+    help="Application source directory for app to build & upload",
+    default="",
+)
+
+# List of tuples (directory, add_to_global_include_path)
+vars.Add(
+    "APPDIRS",
+    help="Directories to search for firmware components & external apps",
+    default=[
+        ("applications", False),
+        ("applications/services", True),
+        ("applications/main", True),
+        ("applications/settings", False),
+        ("applications/system", False),
+        ("applications/debug", False),
+        ("applications/plugins", False),
+        ("applications_user", False),
+    ],
+)
+
 Return("vars")