password grant work

password grant work
Adding public client sample

Adding public client sample
Updated breaking tests and userinfo object parsing

Updated breaking tests and user info object parsing
Fixed sample web app

Fixed sample web app
Password grant work

Password grant work
removed hardcoded values
Changes for review comments and Issue#4

Changes for review comments and Issue#4
Merge pull request #5 from AzureAD/password-grant

Password grant feature work.