[FL-3486,FL-3392] fbt: various improvements and bug fixes (#2982)

* fbt: extapps: compact debug format for .faps
* fbt: sdk: fixed symbol cache regen logic for removed-only symbols
* lib: elf_file: early .fap file handle release
* fbt: extapps: added FAP_VERSION define for application environments
* github: added appsymbols artifact
* api: updates for f18
* github: fixed early fap_dist
* fbt: added flash_dap
* ufbt: added flash_dap
* fbt: reworked flash target; scripts: program.py->fwflash.py and changes
* vscode: updated configuration
* scripts: fwflash.py: ugly fixes for ufbt
* scripts: fwflash.py: cleanup
* fbt: flash: always use .elf file
* scripts: fwflash: fixed elf file path

Co-authored-by: あく <alleteam@gmail.com>

SConstruct

@@ -185,27 +185,15 @@ copro_dist = distenv.CoproBuilder(
 distenv.AlwaysBuild(copro_dist)
 distenv.Alias("copro_dist", copro_dist)
 
-firmware_flash = distenv.AddOpenOCDFlashTarget(firmware_env)
+
+firmware_flash = distenv.AddFwFlashTarget(firmware_env)
 distenv.Alias("flash", firmware_flash)
 
+# To be implemented in fwflash.py
 firmware_jflash = distenv.AddJFlashTarget(firmware_env)
 distenv.Alias("jflash", firmware_jflash)
 
-firmware_bm_flash = distenv.PhonyTarget(
-    "flash_blackmagic",
-    "$GDB $GDBOPTS $SOURCES $GDBFLASH",
-    source=firmware_env["FW_ELF"],
-    GDBOPTS="${GDBOPTS_BASE} ${GDBOPTS_BLACKMAGIC}",
-    GDBREMOTE="${BLACKMAGIC_ADDR}",
-    GDBFLASH=[
-        "-ex",
-        "load",
-        "-ex",
-        "quit",
-    ],
-)
-
-gdb_backtrace_all_threads = distenv.PhonyTarget(
+distenv.PhonyTarget(
     "gdb_trace_all",
     "$GDB $GDBOPTS $SOURCES $GDBFLASH",
     source=firmware_env["FW_ELF"],