Ability to show Find References in the output panel on demand

[rchl]

Is your feature request related to a problem? Please describe.
There is an option (show_references_in_quick_panel) to choose whether Find References should use the Output Panel or the Quick Panel for showing references but while I usually want to use the Quick Panel, occasionally I would want to have it output to the Output Panel so that I can jump between all references without having to re-trigger "Find References" all the time.

Describe the solution you'd like

• Extend lsp_symbol_references with a parameter to choose which output format to use.
• (Optionally) Expose additional command in the Command Palette/Menus. In that case, figure out the name and how it should be named depending on what is the state of the show_references_in_quick_panel option.

Describe alternatives you've considered
Toggling the show_references_in_quick_panel when needing to use the Output Panel occasionally.

[rchl]

I've also considered changing the existing behavior of LSP: Find References command in the Command Palette depending on whether shift is pressed but unfortunately when triggering commands from there the event object is not passed, even if command defines want_event(self): True

[rchl]

Actually I've realized that my use case would be covered if the quick panel would select by default to file and location closest to the current file/position. Then it wouldn't always scroll me to the first file in the list and I could jump from current to the next one easily.

[rchl]

The improvement done in #2337 should satisfy this use case and I feel doing exactly what I've suggested would complicate things too much.