Move from own memory view to DAP and vscode

[GitMensch]

#64 added this the best way possible back than - completely on its own.
The DAP got the Disassemble Request a while ago, so it may be possible / useful to move to this.
I haven't checked in detail but I think it would be possible to implement the dap part (increasing "only" that dependency) and depending on the version of vscode, which seems to have its frontend usable since January 2022, report "we support it".
This should give users of current vscode a nice debugging experience, even on Win32, and we can consider some versions later to remove the native-debug command, window and code altogether when increasing the vscode dependency to 2022 (which should be postponed some months).

Opinions?