helpers.go
func Includes(all, subset []string) bool {
	for _, item := range subset {
		if !Contains(all, item) {
			return false
		}
	}

	return true
}
func Includes(all, subset []string) bool {
	for _, item := range subset {
		if !Contains(all, item) {
			return false
		}
	}

	return true
}
// Includes returns true if a list of strings includes another list of strings.