Add TS tests tooling (#661)

* install test dependencies

* change config for tests

* fix linter failing tests

* add basic test file

* add custom element registration to test

* update dependencies

* add jest config file

* fix test calls on makefile and minor fix on test

* update local npm version

* clean testm file

pyscriptjs/Makefile

@@ -68,7 +68,8 @@ examples:
 test:
 	make examples
 	npm run build
-	$(conda_run) pytest -vv $(ARGS) tests/ --log-cli-level=warning
+	make test-ts
+	make test-py
 
 test-local:
 	make examples
@@ -81,7 +82,7 @@ test-py:
 
 test-ts:
 	@echo "Tests are coming :( this is a placeholder and it's meant to fail!"
-	npm run tests
+	npm run test
 
 fmt: fmt-py fmt-ts
 	@echo "Format completed"