feat(Build): Add distribution files to npm.

By adding the build to the npm package you can include Patternslib via CDN like:
https://cdn.jsdelivr.net/npm/@patternslib/patternslib@9.7.0-alpha.2/dist/bundle.min.js
or
https://unpkg.com/@patternslib/patternslib@9.7.0-alpha.2/dist/bundle.min.js

Author: thet

.npmignore

@@ -0,0 +1,22 @@
+*.css.map
+*.log
+*.swo
+*.swp
+*~
+.bundle
+.DS_Store
+.env
+.sass-cache
+/paternslib.sublime-project
+/paternslib.sublime-workspace
+/stamp-yarn
+cache/
+coverage/
+dist/*.zip
+Gemfile.lock
+node_modules/
+src/pat/**/*.css
+stats.html
+stats.json
+test-reports
+webpack/cache/