Identity and access: 6 API change passages

Updated the existing policies collection with a policies URL segment. Typed policy resources are now grouped under the policies segment. This update adds four typed policy resources: activityBasedTimeoutPolicies claimsMappingPolicies homeRealmDiscoveryPolicies and tokenLifetimePolicies Added activityBasedTimeoutPolicy resource type controls automatic sign-out for web sessions after a period of inactivity, for applications that support activity-based timeout functionality. claimsMappingPolicy resource type controls the claims mapping for WS-Fed, SAML, OAuth 2.0, and OpenID Connect protocols, for tokens issued to a specific application. homeRealmDiscoveryPolicy resource type controls Azure Active Directory authentication behavior for federated users, in particular for auto-acceleration and user authentication restrictions in federated domains. tokenLifetimePolicy resource type controls the lifetime duration of access tokens used to access protected resources. Added the servicePrincipal property to List provisioningObjectSummary.