COMP: Format code to address clang_format warnings

[Leengit]

This fixes warnings about individual lines of C++ code. However, the following warning generated by .github/workflows/clang-format-linter.yml remains unaddressed

Run InsightSoftwareConsortium/ITKClangFormatLinterAction@master
  with:
    error-message: Code is inconsistent with ITK Coding Style.
/usr/bin/docker run --name bcf09832c3d6d9c6e47ed9a70b1d4169a3bc0_f5e03a --label 2bcf09 --workdir /github/workspace --rm -e INPUT_ERROR-MESSAGE -e HOME -e GITHUB_JOB -e GITHUB_REF -e GITHUB_SHA -e GITHUB_REPOSITORY -e GITHUB_REPOSITORY_OWNER -e GITHUB_RUN_ID -e GITHUB_RUN_NUMBER -e GITHUB_RETENTION_DAYS -e GITHUB_RUN_ATTEMPT -e GITHUB_ACTOR -e GITHUB_WORKFLOW -e GITHUB_HEAD_REF -e GITHUB_BASE_REF -e GITHUB_EVENT_NAME -e GITHUB_SERVER_URL -e GITHUB_API_URL -e GITHUB_GRAPHQL_URL -e GITHUB_REF_NAME -e GITHUB_REF_PROTECTED -e GITHUB_REF_TYPE -e GITHUB_WORKSPACE -e GITHUB_ACTION -e GITHUB_EVENT_PATH -e GITHUB_ACTION_REPOSITORY -e GITHUB_ACTION_REF -e GITHUB_PATH -e GITHUB_ENV -e GITHUB_STEP_SUMMARY -e RUNNER_OS -e RUNNER_ARCH -e RUNNER_NAME -e RUNNER_TOOL_CACHE -e RUNNER_TEMP -e RUNNER_WORKSPACE -e ACTIONS_RUNTIME_URL -e ACTIONS_RUNTIME_TOKEN -e ACTIONS_CACHE_URL -e GITHUB_ACTIONS=true -e CI=true -v "/var/run/docker.sock":"/var/run/docker.sock" -v "/home/runner/work/_temp/_github_home":"/github/home" -v "/home/runner/work/_temp/_github_workflow":"/github/workflow" -v "/home/runner/work/_temp/_runner_file_commands":"/github/file_commands" -v "/home/runner/work/ITKVkFFTBackend/ITKVkFFTBackend":"/github/workspace" 2bcf09:832c3d6d9c6e47ed9a70b1d4169a3bc0  "Code is inconsistent with ITK Coding Style."
fatal: unsafe repository ('/github/workspace' is owned by someone else)
To add an exception for this directory, call:

	git config --global --add safe.directory /github/workspace
fatal: unsafe repository ('/github/workspace' is owned by someone else)
To add an exception for this directory, call:

	git config --global --add safe.directory /github/workspace
error: cannot use -i when reading from stdin.
fatal: unsafe repository ('/github/workspace' is owned by someone else)
To add an exception for this directory, call:

	git config --global --add safe.directory /github/workspace
Error: Code is inconsistent with ITK Coding Style.
fatal: unsafe repository ('/github/workspace' is owned by someone else)
To add an exception for this directory, call:

	git config --global --add safe.directory /github/workspace

[dzenanz]

@bradking Do you have some ideas about git config --global --add safe.directory /github/workspace fatal: unsafe repository ('/github/workspace' is owned by someone else)?

[Leengit]

Updating .github/workflows/clang-format-linter.yml and adding .github/workflows/apply-clang-format.yml, to be as they are in ITK, changes the message to the following:

Run InsightSoftwareConsortium/ITKClangFormatLinterAction@master
  with:
    error-message: Code is inconsistent with ITK Coding Style. Add the *action:ApplyClangFormat* PR label to correct.
/usr/bin/docker run --name bcf0961b78e37bf7b412a82c0bb2e94dec3cf_ea18d9 --label 2bcf09 --workdir /github/workspace --rm -e INPUT_ERROR-MESSAGE -e HOME -e GITHUB_JOB -e GITHUB_REF -e GITHUB_SHA -e GITHUB_REPOSITORY -e GITHUB_REPOSITORY_OWNER -e GITHUB_RUN_ID -e GITHUB_RUN_NUMBER -e GITHUB_RETENTION_DAYS -e GITHUB_RUN_ATTEMPT -e GITHUB_ACTOR -e GITHUB_WORKFLOW -e GITHUB_HEAD_REF -e GITHUB_BASE_REF -e GITHUB_EVENT_NAME -e GITHUB_SERVER_URL -e GITHUB_API_URL -e GITHUB_GRAPHQL_URL -e GITHUB_REF_NAME -e GITHUB_REF_PROTECTED -e GITHUB_REF_TYPE -e GITHUB_WORKSPACE -e GITHUB_ACTION -e GITHUB_EVENT_PATH -e GITHUB_ACTION_REPOSITORY -e GITHUB_ACTION_REF -e GITHUB_PATH -e GITHUB_ENV -e GITHUB_STEP_SUMMARY -e RUNNER_OS -e RUNNER_ARCH -e RUNNER_NAME -e RUNNER_TOOL_CACHE -e RUNNER_TEMP -e RUNNER_WORKSPACE -e ACTIONS_RUNTIME_URL -e ACTIONS_RUNTIME_TOKEN -e ACTIONS_CACHE_URL -e GITHUB_ACTIONS=true -e CI=true -v "/var/run/docker.sock":"/var/run/docker.sock" -v "/home/runner/work/_temp/_github_home":"/github/home" -v "/home/runner/work/_temp/_github_workflow":"/github/workflow" -v "/home/runner/work/_temp/_runner_file_commands":"/github/file_commands" -v "/home/runner/work/ITKVkFFTBackend/ITKVkFFTBackend":"/github/workspace" 2bcf09:61b78e37bf7b412a82c0bb2e94dec3cf  "Code is inconsistent with ITK Coding Style. Add the *action:ApplyClangFormat* PR label to correct."
fatal: unsafe repository ('/github/workspace' is owned by someone else)
To add an exception for this directory, call:

	git config --global --add safe.directory /github/workspace
fatal: unsafe repository ('/github/workspace' is owned by someone else)
To add an exception for this directory, call:

	git config --global --add safe.directory /github/workspace
error: cannot use -i when reading from stdin.
fatal: unsafe repository ('/github/workspace' is owned by someone else)
To add an exception for this directory, call:

	git config --global --add safe.directory /github/workspace
Error: Code is inconsistent with ITK Coding Style. Add the *action:ApplyClangFormat* PR label to correct.
fatal: unsafe repository ('/github/workspace' is owned by someone else)
To add an exception for this directory, call:

	git config --global --add safe.directory /github/workspace

Is it possible that this change has to be merged before the warning goes away?

[bradking]

See actions/checkout#760

[Leengit]

@bradking I assume some sort of git config --global --add safe.directory something_here command goes in clang-format-linter.yml but I don't know what the something_here part should be nor do I have familiarity with the yml file to know how/where to put that in. If you happen to know ....

[Leengit]

The last force-push is to git rebase master.

[Leengit]

We are all green on the checks for this pull request. Are we good to merge at this point?