Adds:
- functionality for adding overlays to returned entities
- a new field "Genealogy" on received MaltegoMsg objects that contains information on the input entity's parent types
- automatic population of the "correct" names of properties on input entities, as the Maltego client sends different (internal) property name for certain legacy entities than what is stated in the client Entity Manager UI. This has led to confusion on the side of developers in the past.