Debug: revert cortex debug to lxml and drop DWT (#2651)

* Debug: revert cortex debug to lxml

* Debug: update PyCortexMDebug readme

* fbt: moved "debug" dir to "scripts" subfolder

* ufbt: added missing debug_other & debug_other_blackmagic targets; github: fixed script bundling

* lint: fixed formatting on debug scripts

* vscode: updated configuration for debug dir changes

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Co-authored-by: hedger <hedger@users.noreply.github.com>
Co-authored-by: hedger <hedger@nanode.su>

scripts/sconsdist.py

@@ -170,7 +170,6 @@ class Main(App):
             "update.dir",
             "sdk_headers.dir",
             "lib.dir",
-            "debug.dir",
             "scripts.dir",
         )