Validate Formats: Validate string values in different formats

This class can validate string values in different formats and convert strings between some of those formats.

It provides different functions to validate strings for formats like:

- German names
- Base 64 encoded data
- Integer numbers
- Email addresses
- URLs
- MD5 or SHA1 hashes
- UUID identifiers
- OID identifiers
- CSS position or length values
- CSS colors
- etc..

The class can also convert IPv4 and IPv6 addresses to long integer numbers and vice-versa, convert strings to CamelCase or insert whitespace and delimiters into a CamelCasedString.

The validation rules can be altered and extended dynamically by mapping regular expressions or closure functions to user-defined formats.

The class can validate a string against a given format, an array of given formats or all formats the class instance supports.

It can be used in static context as well as in object context.