pkg: update mac brew pkg to use combined cask/formula commands

[SMillerDev]

What does this PR do?

What issues does this PR fix or reference?

Fixes: improves interaction with Homebrew package manager

Previous Behavior

Specific to macOS and no usage of shared commands for cask and formula

New Behavior

Allow Homebrew anywhere and optimize commands

Merge requirements satisfied?

[NOTICE] Bug fixes or features added to Salt require tests.

• [ ] Docs
• [ ] Changelog - https://docs.saltproject.io/en/master/topics/development/changelog.html
• [x] Tests written/updated

Commits signed with GPG?

No

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