238 ha addon repository check (#244)

* move Makefile and bake file into parent folder

* build config.yaml from template

* use Makefile instead of build shell script

* ignore temporary or created files

* add rules for building the add-on repository

* add rel version of add-on

* add  jinja2-cli

app/requirements-test.txt

@@ -4,4 +4,5 @@
     pytest-cov
     python-dotenv
     mock
-    coverage
+    coverage
+    jinja2-cli