Added a codeclimate file to be able to fine-tune the configuration.

Author: rfelber

.codeclimate.yaml

@@ -0,0 +1,13 @@
+version: "2"         # required to adjust maintainability checks
+checks:
+  file-lines:
+    config:
+      threshold: 300
+  method-lines:
+    config:
+      threshold: 50
+exclude_patterns:
+- "**/__testFiles__/"
+- "**/__snapshots__/"
+- "**/*.test.js"
+