Added new method  GetAttributeValue<T>
Added new method  GetAttributeValue<T>

pthivierge/web-service-reader-for-pi-system,pthivierge/data-collection-service-for-pi-system,pthivierge/web-service-reader-for-pi-system,pthivierge/web-service-reader-for-pi-system,pthivierge/data-collection-service-for-pi-system,pthivierge/data-collection-service-for-pi-system