drkonqi integration

Yo

there is this pile of code that lets kdevelop interface with drkonqi
to hand over the debugging from drkonqi into kdevelop. it currently
has no UI backing in 6 and also doesn't really work with the default
coredumpd-based crash handling

I am wondering how sad we would be if we just threw away the code?

At a glance we could remove

- the entire socket tech in kcrash
https://invent.kde.org/frameworks/kcrash/-/blob/master/src/kcrash.cpp?ref_type=heads#L799
- the external debugger tech in drkonqi
https://invent.kde.org/plasma/drkonqi/-/blob/master/src/debuggerlaunchers.h?ref_type=heads
- dbus interaction code in kdevelop
https://invent.kde.org/kdevelop/kdevelop/-/blob/master/plugins/debuggercommon/midebuggerplugin.cpp#L135

HS