Add Pre-commit Checker in scripts. Helps reduce CI calls.

scripts/check_pre_submit.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+# black checks formating
+echo ">>> Run the pre-submit format check with \`black .\`"
+black .
+
+echo ">>> Run the pre-submit format check with \`mypy\`"
+
+# mypy checks python versions compatibility
+versions=("3.8" "3.9" "3.10" "3.11")
+for version in "${versions[@]}"; do
+    echo "Running mypy for Python $version..."
+    mypy --ignore-missing-imports bittensor/ --python-version="$version"
+done
+
+# flake8 checks errors count in bittensor folder
+error_count=$(flake8 bittensor/ --count)
+echo ">>> Flake8 found ${error_count} errors"