Add support for YUIDocs (rebase)

[aaronfischer]

What does this pull request do?

Adds YUIDocs for API documentation.

What are the relevant issues?

#54 #81

Any background context you want to provide?

N/A

Definition of Done:

Each should be selected to indicate consideration for applicability and/or completion.

• Does this PR fully satisfy the scope as outlined in the referenced issue(s)?
• Is there appropriate test coverage?
• Is static analysis resulting in a satisfactory score?
• If adding new dependencies, does pip requirements need to be updated?
• Has the change log been updated?

[aaronfischer]

@morgan Cleaned this up, now supporting YUIDocs!