Add open brave browser alias

[tbhaxor]

Description

Brave browser is gaining popularity for its privacy centric ideas and built in shield that is able to block almost all the trackers.

Motivation and Context

How Has This Been Tested?

Locally, on macOS

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• If my change requires a change to the documentation, I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• If I have added a new file, I also added it to clean_files.txt and formatted it using lint_clean_files.sh.
• I have added tests to cover my changes, and all the new and existing tests pass.

[NoahGorny]

Thanks for the contribution @tbhaxor !