Feature/add remove ip

- IPCapability exports addIPv4, addIPv6, addIP, removeIPv4, removeIPv6 and removeIP methods. IP could be given by a String or an IPProtocolEndpoint.

- AddIP and RemoveIPCommands.

- AddIPv4, AddIPv6, RemoveIPv4 and RemoveIPv6 action.

- Tests for all methods, actions and templates.