A Rust library to check for and add headers to files.
A header can be any arbitrary text, but we provide an spdx feature, which when enabled
allows usage of any SPDX license known to the license crate as headers. For easy use of
this feature, we have already defined structs to support some commonly used licenses:
* Apache-2.0
* MIT
* BSD-3-Clause
* GPL-3.0-Only
* EPL-2.0
* MPL-2.0