[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>

firmware/SConscript

@@ -1,6 +1,16 @@
 Import("env")
 
-env.Append(LINT_SOURCES=["firmware"])
+env.Append(
+    LINT_SOURCES=["firmware"],
+    # SDK_HEADERS=[env.File("#/firmware/targets/furi_hal_include/furi_hal.h")],
+    SDK_HEADERS=[
+        *env.GlobRecursive("*.h", "#/firmware/targets/furi_hal_include", "*_i.h"),
+        *env.GlobRecursive("*.h", "#/firmware/targets/f${TARGET_HW}/furi_hal", "*_i.h"),
+        File("#/firmware/targets/f7/platform_specific/intrinsic_export.h"),
+    ],
+)
+env.SetDefault(SDK_DEFINITION=env.File("./targets/f${TARGET_HW}/api_symbols.csv"))
+
 
 libenv = env.Clone(FW_LIB_NAME="flipper${TARGET_HW}")
 libenv.Append(