Add NamingTradition interface

[BenOvermyer]

Add a "NamingTradition" interface for handling naming traditions.

It should include the following:

• The order in which names are given
• The number and type of names (e.g., given name, birth name, family name, middle name, etc.)
• Affixes for each name component (e.g., Mc is added to the front of all family names)

Also export a function that takes a NamingTradition, a GeneratorSet, and a type of name and generates a single name fitting that type of name, including all modifiers that the NamingTradition specifies.