This PR adds a new `xtask` command for checking that packages conform to
certain standards.
Still a work-in-progress, but right now it checks:
- If `[lints] workspace = true` is set
- If packages are using non-workspace dependencies
Release Notes:
- N/A
This PR adds a new `cargo xtask licenses` command for finding crates
with missing license files.
A number of crates were uncovered that were missing a license file, and
have had the appropriate license file added.
Release Notes:
- N/A
Piotr Osiewicz