Clean up command help and flags

[chris-crone]

- What I did Cleaned up the command help and flags, aligning them with what we have in the Docker CLI where applicable.

- How to verify it Manually run through commands and verify outputs.

- Description for the changelog Breaking changes:

• global: --parameters-files was renamed to --parameters-file and the short option was removed
• global: --credential-set no longer has a short option
• init: --compose-file no longer has a short option
• init: --description no longer has a short option
• init: --maintainer no longer has a short option
• init: --single-file no longer has a short option
• install: --orchestrator no longer has a short option
• upgrade: --bundle renamed to --app-name

[silvin-lubecki]

Sorry, you will need to rebase 🦁

[chris-crone]

Must not forget to update the README.md once all changes have been made and squash fixup commits.

[codecov[bot]]

Codecov Report

Merging #509 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #509   +/-   ##
=======================================
  Coverage   69.87%   69.87%           
=======================================
  Files          54       54           
  Lines        3047     3047           
=======================================
  Hits         2129     2129           
  Misses        635      635           
  Partials      283      283

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[chris-crone]

CI is green so I squashed. PTAL @silvin-lubecki