Add support for sync upstream -> downstream

Signed-off-by: Petr "Stone" Hracek <phracek@redhat.com>

bot-cfg.yml

@@ -0,0 +1,20 @@
+---
+version: "1"
+
+betka:
+  # is betka enabled for this repository
+  # optional - defaults to true
+  enabled: true
+  notifications:
+    email_addresses: ["pkubat@redhat.com", "phracek@redhat.com", "hhorak@redhat.com"]
+
+  # Specify if master branch in upstream repository is synced
+  master_checker: true
+  # Should pull requests be synced?
+  pr_checker: false
+  # Path to directory with dockerfile withing upstream repository
+  upstream_git_path: "6"
+  # Github comment message to enforce sync of a pull request
+  pr_comment_message: "[test]"
+  # Specify URL to an image used for dist-git source generation. Like
+  image_url: "quay.io/rhscl/cwt-generator"