v2.3.0

Adds support for UTF-8 box designs, and colored box designs.

• The boxes config file is now UTF-8 encoded, which allows for lots of new box designs based on UTF-8 characters, by @tsjensen #72
• ANSI color codes are now allowed in box shapes by @tsjensen
• Added dependency on ncurses for detecting a terminal's color capability
• Added new command line options --color and --no-color for forcing/suppressing color output
• Added long options to command line
• Add MacOS to GitHub Actions workflow and support all test categories on MacOS by @mathomp4
• Removed linker --wrap option so unit tests can run on MacOS by @chorpler
• Multiple new box designs using Unicode box drawing characters by @chorpler
• Three new box designs which feature colored boxes by @tsjensen

[Full Release Notes] [Download / Install]