[Feature Request] Device Assurance API Support

[csanders-git]

Device assurance APIs are now currently documented and are a key portion of Okta's future roadmap. Therefore adding support for these in a future release seems key to the success of this SDK.

Of course temporarily we could either manually call these or articulate the base objects in the SDK to call these APIs but that's outside the point, just preempting anyone responding with how to call these without the SDK :)