[pre-commit] Add pre-commit to bob.devtools and its template

.flake8

.isort.cfg

.pre-commit-config.yaml

bob/devtools/bootstrap.py

bob/devtools/build.py

bob/devtools/changelog.py

bob/devtools/ci.py

bob/devtools/constants.py

bob/devtools/dav.py

bob/devtools/deploy.py

bob/devtools/graph.py

bob/devtools/log.py

bob/devtools/mirror.py

bob/devtools/pipelines.py

bob/devtools/release.py

bob/devtools/scripts/__init__.py

bob/devtools/scripts/badges.py

bob/devtools/scripts/bdt.py

bob/devtools/scripts/build.py

bob/devtools/scripts/caupdate.py