[codespell] Adding Tox Target for Codespell

Second in a series of commits to add Codespell to Ironic Repos. This one adds the command that was used to fix the spelling errors.

Future Commits will add CI support and potentially a git-blame-ignore-revs file if their are lots of spelling mistakes that could clutter git blame.

Change-Id: I2db37013bdfa85055be9f1a620424ea50e993da0

setup.cfg

@@ -28,3 +28,10 @@ packages =
 console_scripts =
     bifrost_inventory.py = bifrost.inventory:main
     bifrost_inventory = bifrost.inventory:main
+
+[codespell]
+quiet-level = 4
+# Words to ignore:
+# - te: This is a file extension.
+# - Buil: Surname (has to be lowercase in list)
+ignore-words-list = te,buil

tox.ini

@@ -83,3 +83,12 @@ deps =
   ansible-lint>=6,<7
 commands =
     bash tools/ansible-lint.sh
+
+[testenv:codespell]
+description =
+  Run codespell to check spelling
+deps = codespell
+# note(JayF): {posargs} lets us run `tox -ecodespell -- -w` to get codespell
+#             to correct spelling issues in our code it's aware of.
+commands =
+  codespell {posargs}