🔧 Added sourcery config file (#811)

Added 'simplify-boolean-comparison' to ignore
'if something is True' prevents bugs where something is a callable, where 'if something():' would evaluate to False but 'if something:' evaluated to true since the callable object exists.

.sourcery.yaml

@@ -0,0 +1,18 @@
+ignore: []
+
+refactor:
+  skip: [simplify-boolean-comparison]
+
+metrics:
+  quality_threshold: 25.0
+
+clone_detection:
+  min_lines: 3
+  min_duplicates: 2
+  identical_clones_only: false
+
+github:
+  labels: []
+  ignore_labels: [sourcery-ignore]
+  request_review: author
+  sourcery_branch: sourcery/{base_branch}