Release v4.2.0

Added

• A file reference in a .play document is now a link — cmd-click opens the file it names (#120)
• screenplay.sourceRoot setting, to say what a repo-relative path in a document is resolved against (#120)
• A file reference that could mean more than one file is left unlinked, with a tooltip naming every candidate — and is never resolved from a search that may have been cut short (#120)
• A file reference whose name contains *, ?, [, ], { or } resolves to the file literally named that, so route files such as [id].tsx are linked (#120)
• Links are re-resolved when a file appears or disappears outside the editor, such as from a git checkout or a run of the generator (#120)