Add informed guessing by field name

[acrosman]

For standard fields on standard objects, the field value to be generated can be guessed based on contact in many cases. A few examples:

• Contact.FirstName
• Contact.LastName
• Contact.MiddleName
• Account.Name (really just about any standard object name)

Create a pattern for improving the guessing of default faker command, and add a few to make better guesses so this can improve over time.