[XAM/NUI] - Implement More Functions
- Implement XamNuiIsDeviceReady, XamNuiIdentityGetSessionId, XamNuiHudGetInitializeFlags, XamIsNuiUIActive, XamUserNuiGetUserIndexForSignin and XamNuiHudGetVersions
- Stub XamIsNuiAutomationEnabled/XamIsNatalPlaybackEnabled, XamUserNuiGetUserIndex, XamUserNuiEnableBiometric, XamNuiGetDepthCalibration, XamNuiSkeletonGetBestSkeletonIndex, XamNuiIsChatMicEnabled, XamNuiPlayerEngagementUpdate, XamNuiCameraTiltGetStatus, XamNuiCameraElevationGetAngle, XamNuiCameraGetTiltControllerType, XamNuiCameraSetFlags, XamShowNuiGuideUI, XamNuiHudIsEnabled, XamNuiIdentityEnrollForSignIn , XamNuiIdentityAbort and XamNuiHudSetEngagedTrackingID
- According to Xam XamIsNuiAutomationEnabled, and XamIsNatalPlaybackEnabled are the same function.
- Left Notes for future reference