v7.0

[ds300]

One breaking change to help address #270

• patch-package will no longer even attempt to patch files when running as part of a dependency's setup script.

Also need to do a few things

• add a package.json config section (or .patch-package.config.js?) for devOnly, patchDir, include/exclude config options, and possibly others. maybe switch to globs instead of regex
• figure out a way for lib authors to add patch-package as a postinstall hook but also as dev dependency only (does it matter? seems like postinstall failures don't prevent yarn/npm from finishing anyway)
• look into automatically adding .dev suffix when the package is def a dev dep.