Adding reconnexion capability to multiple servers.

README.md

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

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

...ava/fr/soleil/opcuaproxy/connector/ITangoStateChange.java

...va/fr/soleil/opcuaproxy/connector/OpcUaClientFactory.java

...roxy/connector/OpcUaClientSecurityCertificateFactory.java

.../opcuaproxy/connector/OpcUaClientSecurityNoneFactory.java

...n/java/fr/soleil/opcuaproxy/connector/OpcUaConnector.java

...java/fr/soleil/opcuaproxy/subscriber/OpcUaSubscriber.java