Add support for vale linting of documentation
Link: https://errata-ai.gitbook.io/vale/
We can use this to do some basic filtering on our documentation and code comments. I don't think we can enforce it anywhere yet, but we can at least start doing this.
Supported formats: https://docs.errata.ai/vale/scoping#formats
It appears it could even be used on ParaView's proxy XML files with some xsltproc
filtering to extract prose information (versus things like method or class names).