* Split help message into brief and full help
Demonstrate on ansi command
Brief help is printed when running `help commands` so it doesn't clutter
the table. Full help is printed when normal help message is requested
(e.g., `help ansi`, `ansi --help`, etc.).
* Split long command descriptions
Some are not split, just edited to be shorter.
* Capitalize the usage of all commands
* Make sure every usage ends with dot
* Fix random typo
* typo fixes
* Change signature to take in short-hand flags
* update help information
* Parse short-hand flags as their long counterparts
* lints
* Modified a couple tests to use shorthand flags
