Add support for Sinon & Chai by default in new projects
Add support for Sinon & Chai by default in new projects

This is to offer a stubbing framework by default, as I believe it is a
feature users will want

kabisa/maji,kjwierenga/maji,kjwierenga/maji,kjwierenga/maji,kabisa/maji,kabisa/maji,kjwierenga/maji