fix-docker (#10)

* fix docker
-> use "pip install -e ." in installation
-> add symlinks in docker image
-> docker / non docker execution can run same main.py + cli

* remove sh scripts

* remove requirements.txt

Reviewed-on: local-it-infrastructure/e2e_tests#10
Co-authored-by: Daniel <d.brummerloh@gmail.com>
Co-committed-by: Daniel <d.brummerloh@gmail.com>

main.py

@@ -31,6 +31,13 @@ ENV_PATHS = ";".join([x.as_posix() for x in ENV_FILES])
 RECIPES_DIR = Path("../recipes").resolve()
 OUTPUT_DIR = Path("./test-output").resolve()
 
+# -------------------------------- pythonpath -------------------------------- #
+
+# add recipes dir to pythonpath, so that python imports from there are possible
+# the custom classes of Runner will be imported from there
+os.environ["PYTHONPATH"] = RECIPES_DIR.as_posix()
+
+# ------------------------------------ run ----------------------------------- #
 
 subprocess.run(
     [