Enable Windows console colors

[vpetrigo]

Hello,

Thank you for your awesome library that makes it really easy to print debug messages. I would like to propose some changes that enable Windows console color output (tested with cmd and PowerShell).

Examples:

• before:
  • CMD:
  • PowerShell:
• after:
  • CMD:
  • PowerShell:

Also, I ran rustfmt on src/lib.rs file, but may revert that changes if needed.

[borntyping]

Thanks! Released as v1.4.0.