Fix #2649: Add support for choosing search scope

[gayanper]

Provide two scopes to search from for search operations such as

• reference search
• call hierarchy search

Fixes #2649

[gayanper]

Adds the following status bar item to toggle and see the current scope in use

Clicking on the status bar item or triggering from command pallet will provide the following scope picker list

The command in the command pallet

[rgrunber]

Just some initial comments. The main one being I'd prefer to place the command under the server status bar with the other shortcuts rather than having its own status bar item at the bottom.

We need to be careful not to have too many.

[gayanper]

Other the name 'main' and 'test' for scopes, I applies all other suggestions since I also agree with those suggestion considering how we want to features to expressed in extension.

[rgrunber]

Overall, I think this is ready to be merged once we figure out the LS situation.

[rgrunber]

Under the README.md, can you add a section (at the bottom of settings) listing the new setting for the upcoming 1.35.0 ? See bf05afb#diff-b335630551682c19a781afebcf4d07bf978fb1f8ac04c6bf87428ed5106870f5R252 for an example. You can reuse the markdownDescription from your setting.

[gayanper]

I will add during today @rgrunber

[gayanper]

Under the README.md, can you add a section (at the bottom of settings) listing the new setting for the upcoming 1.35.0 ? See bf05afb#diff-b335630551682c19a781afebcf4d07bf978fb1f8ac04c6bf87428ed5106870f5R252 for an example. You can reuse the markdownDescription from your setting.

@rgrunber Done