add parachains-common-types

[xlc]

Closes #10512

[xlc]

/cmd prdoc

[xlc]

/cmd fmt

[iulianbarbu]

check-umbrella needs fixing too. You'd need to add the crate into the umbrella/polkadot-sdk crate, as a dependency, in a similar fashion to parachains-common crate (in Cargo.toml and lib.rs).

[xlc]

Updated. It doesn't make a lot of sense to put this to umbrella but anyway...
Also we should have something like /cmd umbrella to do it like prdoc

[iulianbarbu]

Looks like the PR couldn't be merged. Main error being related to check-publish-compile: https://github.com/paritytech/polkadot-sdk/actions/runs/20030408485/job/57437953739. Updated the branch to latest master, to see if the error reproduces with latest changes in master.