Contains checks if a string contains another substring or any substring from a slice of strings.

The `FormatPath` function converts file paths to either Windows or Unix style based on the operating.

The `FormatSize` function converts a given size in bytes to a human-readable format with appropriate.

The function `GetVersion` is used for setting the version.

The Pluralize function takes a count and returns the singular or plural form of a word based on the.

ToLower converts an interface{} to a lowercase string.

ToUpper converts an interface{} to a uppercase string.