MPID debugger-provided callbacks

[mahermanns]

Callback descriptions for debugger-provided callbacks (e.g. stepping) missing in MPID

[mahermanns]

Tools WG 2025-11-03

• We should mimic OMPD with the context pointers
• These are defined here: https://github.com/mpiwg-tools/tools-issues/wiki/Handle-Debugging%3ADebugger-provided-Callbacks#lookup-symbols