Get-AzureSqlDatabaseServiceObjective and Get-AzureSqlDatabaseOperation cmdlet using SM.NET Hydra

    Implemented Get-AzureSqlDatabaseServiceObjective and Get-AzureSqlDatabaseOperation cmdlet for Cert/AAD auth by using the generated code by Hydra - SqlManagementClient.cs  

    Added cert auth unit tests for Get-AzureSqlDatabaseServiceObjective and Get-AzureSqlDatabaseOperation cmdlet
    Updated MockSessions.xml to include the request/response for the added unit tests.

    Defined the output formats for Database Operation in Microsoft.WindowsAzure.Commands.SqlDatabase.Types.ps1xml
    
    Fixed Defect 1631770:can't alter premium database into shared via REST API when omitting the new SLO