* Convert tests to TypeScript
* Add types for tests
* Rename files to TS
* Fix up test imports
* Fix TSC errors
* Liiiint
* Add types to util method signatures
* Some more types
* MVP tests for hass-util.html
* MVP util.js to allow individual JS function export
* Use mocha to unit test js logic
* Isolate mocha test directory
* Move mocha opts to separate file
* Default export of util function
* Use reify for mocha tests instead of babel