fix: add missing autoformat.sh script

Author: ariefshaik7

autoformat.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+#
+# This script runs the auto-formatters (isort and pyink)
+# to fix code style and import order.
+
+set -e
+
+if ! command -v isort &> /dev/null
+then
+    echo "isort not found, refer to CONTRIBUTING.md to set up dev environment first."
+    exit
+fi
+
+if ! command -v pyink &> /dev/null
+then
+    echo "pyink not found, refer to CONTRIBUTING.md to set up dev environment first."
+    exit
+fi
+
+
+echo "Running isort to sort imports..."
+isort .
+
+echo "Running pyink to reformat code..."
+pyink .
+
+echo "Formatting complete."