Updated signatures to remove  Auth* prefix to use MCA* prefix
Updated signatures to remove  Auth* prefix to use MCA* prefix

ibm-bluemix-mobile-services/bms-clientsdk-cordova-plugin-core,ibm-bluemix-mobile-services/bms-clientsdk-cordova-plugin-core,ibm-bluemix-mobile-services/bms-clientsdk-cordova-plugin-core