refactor!: Rename command line flags for the sake of consistency

[lenny-goodell]

BREAKING CHANGE: renamed -c/--confdir to -cd/--configDirand -f/--file to -cf/--configFile

Signed-off-by: Leonard Goodell leonard.goodell@intel.com

If your build fails due to your commit message not passing the build checks, please review the guidelines here: https://github.com/edgexfoundry/app-service-configurable/blob/main/.github/CONTRIBUTING.md

PR Checklist

Please check if your PR fulfills the following requirements:

• [ ] I am not introducing a breaking change (if you are, flag in conventional commit message with BREAKING CHANGE: describing the break)
• [x] I am not introducing a new dependency (add notes below if you are)
• [ ] I have added unit tests for the new feature or bug fix (if not, why?) N/A
• [x] I have fully tested (add details below) this the new feature or bug fix (if not, why?)
• [x] I have opened a PR for the related docs change (if not, why?) https://github.com/edgexfoundry/edgex-docs/pull/916

Testing Instructions

Build service run ./app-service-configurable -h verify flags in help have new names run ./app-service-configurable --confdir something verify error due to --confdir unknown run ./app-service-configurable --configDir something verify error due to file something not found

New Dependency Instructions (If applicable)