Add option to allow wildcard path dependencies

[sribich]

Adds an allow-wildcard-paths option for the bans check which will allow path dependencies to use wildcard versions if the crate is private or the dependency is a dev-dependency.

Resolves: #448

[Jake-Shadle]

Thanks! I made one minor change to also ignore wildcards if the the dependency comes from a git source, as many crates that are otherwise public and published would fail this check if a workspace uses a git patch of it.