Added ServiceQueue class to maintain a queue
Added ServiceQueue class to maintain a queue

icapps/swiftGenericWebService,icapps/ios-air-rivet,icapps/ios-faro,icapps/ios-air-rivet,icapps/ios-faro,icapps/ios-air-rivet,icapps/ios-air-rivet,icapps/ios-faro,icapps/ios-air-rivet,icapps/ios-faro