FR: Jump to line

**Is your feature request related to a problem? Please describe.**
While debugging, I found something that is not exactly what I want. So I set the variable and want to replay a couple of lines that change values/call function with this new variable.
I had to use the gdb window to "jump to line".

**Describe the solution you'd like**
Access to the gdb’s "jump to line" function. I see 2 easy ways:
* Have a cursor on the current line that I can drag&drop on another line
* Right click on the line I want, and select jump to line

**Describe alternatives you've considered**
Gdb window, but that’s way less ergonomic.

**Additional context**
QtCreator does this quite nicely.