Add global options for data sources.

[emtwo]

What type of PR is this? (check all applicable)

• Feature

Description

This is an implementation (to the best of my understanding) of the suggestion proposed here: #2892 (comment) @arikfr I wasn't 100% clear on what you had in mind for this, so I figured I can put up some code to see if we're on the same page.

Essentially there is another global_options field that is added to a data source. It behaves very similarly to options except it applies to all data sources, it's not encrypted, and there is an extension point add_global_option() which can be used by extensions to easily add more of these options.

Related Tickets & Documents

Discussion for this started here: #2892

Mobile & Desktop Screenshots/Recordings (if there are UI changes)

Global options are added to the bottom of the data source page and look the same as the other options (this one has a doc url at the bottom as an example)

[guidopetri]

@emtwo , same story as the other PR - thanks so much! We've updated a lot of things now that we're Community-driven so - if you're still interested in getting this merged - would you mind rebasing off master to re-run the CI, as well as updating merge conflicts?

We're trying to clean up our PR todo list, so if you're not interested, that's fine - we'll close the PR in about a week if we don't hear back. If you're interested in reopening the PR afterwards, we would also very much welcome that.