@Nonnull
	@Override
	public String description() {
		return "Literal stdin";
	}
A <code>ResourceResolver</code> that, when given "-" as a resource string,
will try to create a copy in the cache with a proper file name and return a
reference to that file.
src/main/java/dev/jbang/source/resolvers/LiteralScriptResourceResolver.java