[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>

SConstruct

@@ -9,9 +9,10 @@
 import os
 import subprocess
 
+DefaultEnvironment(tools=[])
+
 EnsurePythonVersion(3, 8)
 
-DefaultEnvironment(tools=[])
 # Progress(["OwO\r", "owo\r", "uwu\r", "owo\r"], interval=15)
 
 
@@ -58,6 +59,8 @@ distenv = coreenv.Clone(
         "-ex",
         "source debug/FreeRTOS/FreeRTOS.py",
         "-ex",
+        "source debug/flipperapps.py",
+        "-ex",
         "source debug/PyCortexMDebug/PyCortexMDebug.py",
         "-ex",
         "svd_load ${SVD_FILE}",
@@ -160,6 +163,28 @@ if GetOption("fullenv") or any(
 basic_dist = distenv.DistCommand("fw_dist", distenv["DIST_DEPENDS"])
 distenv.Default(basic_dist)
 
+dist_dir = distenv.GetProjetDirName()
+plugin_dist = [
+    distenv.Install(
+        f"#/dist/{dist_dir}/apps/debug_elf",
+        firmware_env["FW_EXTAPPS"]["debug"].values(),
+    ),
+    *(
+        distenv.Install(f"#/dist/{dist_dir}/apps/{dist_entry[0]}", dist_entry[1])
+        for dist_entry in firmware_env["FW_EXTAPPS"]["dist"].values()
+    ),
+]
+Depends(plugin_dist, firmware_env["FW_EXTAPPS"]["validators"].values())
+Alias("plugin_dist", plugin_dist)
+# distenv.Default(plugin_dist)
+
+plugin_resources_dist = list(
+    distenv.Install(f"#/assets/resources/apps/{dist_entry[0]}", dist_entry[1])
+    for dist_entry in firmware_env["FW_EXTAPPS"]["dist"].values()
+)
+distenv.Depends(firmware_env["FW_RESOURCES"], plugin_resources_dist)
+
+
 # Target for bundling core2 package for qFlipper
 copro_dist = distenv.CoproBuilder(
     distenv.Dir("assets/core2_firmware"),
@@ -240,7 +265,6 @@ firmware_env.Append(
         "site_scons",
         "scripts",
         # Extra files
-        "applications/extapps.scons",
         "SConstruct",
         "firmware.scons",
         "fbt_options.py",