Create `npm run deploy` Script to Streamline Package Publishing

[jonobr1]

These are currently the steps involved in publishing a new version of Two.js. An npm run publish would greatly increase the ease of publishing and put Two.js on a more regular cycle of publication.

1. Create new git tag
2. Add package to Github Packages
3. Update origin/master
4. Update npmjs.org

[jonobr1]

This should really just be a Github Action when tagging commits to specific release versions.

[jonobr1]

This is essentially two simple npm commands:

1. npm version minor
2. npm publish

But, because of Github's Package Registry requires package.json manipulation as well.