add ci script

.gitlab-ci.yml

@@ -0,0 +1,13 @@
+stages:
+        - check
+
+build:
+        stage: check
+        image: registry.hottis.de/dockerized/base-build-env:1.5.2-bullseye
+        tags:
+                - hottis
+                - linux
+                - docker
+        script:
+                - for I in src/*.py; do python -m py_compile $I; done
+                - for I in src/*.py; do python -m pycodestyle --max-line-length=120 $I; done