added shellCheck for bash formatting

Signed-off-by: hansinikarunarathne <107214435+hansinikarunarathne@users.noreply.github.com>

.github/workflows/bash_formatter.yaml

@@ -0,0 +1,16 @@
+name: Proper Formatting on bash files
+
+on: [push, pull_request]
+
+jobs:
+  format_bash_files:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Install ShellCheck
+      run: sudo apt install -y shellcheck
+
+    - name: Run ShellCheck
+      run: find . -type f -name "*.sh" -exec shellcheck {} +
+