feat(query): add query verb with initial preset features

[mattem]

Add query functionality. Users can provide regular bazel queries that will be passed directly to bazel. Users can also take advantage of predefined queries that will simply prompt the user for bazel label(s) as needed

[JesseTatasciore]

Can pass through directly to bazel query:

Can prompt the user to use a preset query when no arguments are given to query:

Can specify which preset query to use when calling query:

Can specify a preset query and give its argument all in the same command:

[alexeagle]

"determine why a target depends on another" the prompts are "target" and "dependency" and at least to me, it's not clear which direction the arrow points.
Maybe the prompt could include placeholders, like "determine why target A depends on target B" and then "target A?" "target B?"

But, then in your next demo that won't work since aspect query why you wouldn't know what "A" and "B" refer to 🤔

[mattem]

Some notes off the top of my head for this:

• Have we agreed on the preset format? Where does this live? I see we have both an .aspect and a plugins file. I generally dislike so many files in the repo root, and adding another one for presets just adds to that. Can we merge these?

• There seems to be quite a large amount of boiler plate to add a verb, and we want presets for query, cquery and aquery. As an extension to this, it seems tricky to get the flags to pass though?

[JesseTatasciore]

@alexeagle does something like this work better?

[f0rmiga]

@JesseTatasciore We have to keep our errors compliant with https://go.googlesource.com/proposal/+/master/design/go2draft-error-handling-overview.md.

Kinda hard to enforce but we should strive for it.

[f0rmiga]

I think you have to rebase before merging because of my changes to docs generation.