Adding the capability to have polled attributes

README.md

pom.xml

src/main/java/fr/soleil/opcuaproxy/AOpcUaSubscriber.java

...main/java/fr/soleil/opcuaproxy/OpcUaPropertiesParser.java

src/main/java/fr/soleil/opcuaproxy/OpcUaProxy.java

...java/fr/soleil/opcuaproxy/attributes/AOpcUaAttribute.java

...leil/opcuaproxy/attributes/AOpcUaAttributeParameters.java

...soleil/opcuaproxy/attributes/IAttributeValueConsumer.java

...ava/fr/soleil/opcuaproxy/attributes/IOpcUaNodeReader.java

.../soleil/opcuaproxy/attributes/IOpcUaNodeReaderWriter.java

...fr/soleil/opcuaproxy/attributes/OpcUaPolledAttribute.java

...opcuaproxy/attributes/OpcUaPolledAttributeParameters.java

...oleil/opcuaproxy/attributes/OpcUaSubscribedAttribute.java

...aproxy/attributes/OpcUaSubscribedAttributeParameters.java

...java/fr/soleil/opcuaproxy/attributes/OpcUaTangoUtils.java

...xy/attributes/build/AOpcUaAttributeBuilderParameters.java

...proxy/attributes/build/OpcUaAttributeBuildParameters.java

...il/opcuaproxy/attributes/build/OpcUaAttributeFactory.java

...tributes/build/OpcUaPolledAttributeBuilderParameters.java

...utes/build/OpcUaSubscribedAttributeBuilderParameters.java