add codespell workflow

.github/scripts/codespell.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+set -ex
+
+SCAN_RESULT=`codespell -H --quiet-level=3 --skip="*.h,*.cmake,*.c,*.hpp,*.cpp,*.sh,*.py,test/supp/*.supp,./.venv" --ignore-words-list="ASSER,Tne,ba,BA"`
+echo -e "${SCAN_RESULT}" 

.github/workflows/reusable_checks.yml

@@ -29,7 +29,7 @@ jobs:
         python3 -m venv .venv
         . .venv/bin/activate
         echo "$PATH" >> $GITHUB_PATH
-        python3 -m pip install bandit
+        python3 -m pip install bandit codespell
 
     - name: Configure CMake
       run: >
@@ -55,7 +55,11 @@ jobs:
     - name: Run a spell check
       uses: crate-ci/typos@b63f421581dce830bda2f597a678cb7776b41877 # v1.18.2
       with:
-        config: ./.github/workflows/.spellcheck-conf.toml
+        config: ./.github/workflows/.spellcheck-conf.toml 
+
+    - name: Run codespell
+      run: |
+        bash .github/scripts/codespell.sh
 
     # Run Bandit recursively, but omit _deps directory (with 3rd party code) and python's venv
     - name: Run Bandit

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@@ -0,0 +1 @@
+