CheckUntil regularly check a predicate until it's true or time out is reached.

FormatErrorList() is a wrapper function that unifies error list formatting and makes printing error lists consistent.

HasErrors() is a simple wrapper function to check if an error list contains errors.

MakeOutputDirectory() creates a new directory at the path argument if the path does not exist.

PathExists() is a wrapper function that simplifies checking if a file or directory already exists at the provided path.

SplitPathForViper() is an utility function to split a path into 3 parts: - directory - filename - extension The intent was to break a path into a format that's more easily consumable by spf13/viper's API.