Implement new `all_linters()` function to easily access all linters

[IndrajeetPatil]

To be consistent with linters_with_defaults():

library(lintr)

invisible(linters_with_defaults())

invisible(linters_with_tags())
#> Error in linters_with_tags(): argument "tags" is missing, with no default

^{Created on 2022-12-13 with reprex v2.0.2}

Note that this would be a backward-compatible change, and shouldn't create any issues for existing linting workflows. It does make the API a bit more consistent for the future usage.

[AshesITR]

Actually I think linters_with_tags() is very unclear code and should error, as it does now. On the other hand linters_with_defaults() expresses that the user wants to use default recommendations.

We could instead introduce all_linters(packages = "lintr").
WDYT?

[IndrajeetPatil]

Yeah, that sounds like a veggie name and solution to me.

I can work on it. 🫡