Render errors as-is if they already have ansi characters

[ecooper]

Problem

If a command throws an error message that has already been formatted for display, we clobber it and make it red. This means some errors, such as query syntax errors, lose the benefit of code highlighting.

Solution

Detect if a thrown error has been formatted for display already, and don't apply chalk.red if it has.

While I was here, I moved the error handling code into a single module for discoverability and eventually testing.

Result

Doesn't have ansi so it renders red:

Has ansi so we display as-is:

[ptpaterson]

awesome.