Use non-red (or red-like) hues for all non-error output.

[sclevine]

These hues should only be used to draw attention to errors.

Acceptance Criteria
When I execute any pack subcommand
Then I only see red or red-like hues for error output

[mgibson1121]

When I execute a command successfully using the pack CLI (an error does not occur)
Then I see green non error output text styled in green

Notes

• Green won the styling survey based on seven responses. I also think green looks the best and leaves the least room for ambiguity.

• It is my understanding that tip text is styled in green. We should monitor if this turns into a UX problem in the future. If it does, I would recommend changing the tip text to yellow

• The color can be modified by going into pack/style/style.go and changing var Key = color.MagentaStringto var Key = color.GreenString

[ekcasey]

delivered in pack-0.1.0-build.70-darwin

[mgibson1121]

@ekcasey @ameyer-pivotal Tested this out in pack-0.1.0-build.70-darwin. Output is green. Per my discussion with @ameyer-pivotal Wednesday morning, he felt pretty strongly that the output color should be a normal shade that is bolded. Although green won the survey, I differ to him. @ameyer-pivotal do you want me to reject and rewrite the ticket?