Python client is built in CI (no new release)

gen_python_client.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+VERSION=$(<VERSION)
+OPENAPI_VERSION=7.8.0
+wget https://repo1.maven.org/maven2/org/openapitools/openapi-generator-cli/${OPENAPI_VERSION}/openapi-generator-cli-${OPENAPI_VERSION}.jar -O openapi-generator-cli.jar
+
+java -jar openapi-generator-cli.jar generate -i broker/jfjoch_api.yaml -o python-client/ -g python --git-host=git.psi.ch --git-repo-id jungfraujoch --git-user-id jungfraujoch --additional-properties=packageName=jfjoch_client,packageVersion=$VERSION
+cd python-client
+python3 setup.py sdist bdist_wheel
+mv dist/* ..