Updated O3651-5 to use OWIN for auth & RTM of Office 365 API SDK

Includes changes to module O3651-5 that uses the O365 API SDK & OWIN for authentication. Sample demos & completed lab solution also more "production ready". What is not updated in this PR is the actual HOL document (Lab.md) to actually implement the completed sample. Punting per discussion with @jthake to update at future date.