* Add TypeScript app creation
* Actually specify new extension
* Check for ts and tsx
* Fix types in default service worker file
* Mirror changes in JS version of SW
* Separate templates
* Use separate template directory
* Remove unused function
* Add a tsconfig file to the template
* Test install of typescript
* Add e2e for TypeScript
* Check for index.tsx to make sure we're not in the JS template
* Ensure TypeScript doesn't leak into normal installs
* Ignore some files
* Print version of CRA
* Fix script
* Add new template
* Move test to correct location
* Use `verifyTypeScriptSetup` routine to populate files
* Ensure tsconfig is created
