Make it more unix way

[mkwork]

Expected behavior

I can set dump generation action(program).

Actual behavior

Dump generation program is hardcoded.

Use case

I can trigger debugger, profiler or other tool.

System information (e.g., distro, kernel version, etc.)

Design.

[MarioHewardt]

Interesting idea. For now, we want to keep parity with Win32 version and we will also be removing the dependency on gcore and replacing it with a custom dump writer. I've moved this issue into the Futures milestone and we can evaluate again.

[SleepyBrett]

If you don't do it now you won't do it at all. The more people use the tool the less people will accept you making a change like that.