added also the consumer-type variables to the XML file

Intermediate commit before the weekend: added options to add an external trigger to a network to handle poll and push properly. Currently it does not work properly.

renamed publishDeviceReadRegister() and publishDeviceWriteRegister() into feedDeviceRegisterToControlSystem() and consumeDeviceRegisterFromControlSystem()

renamed publish() and connectToDevice() into more specific feedToControlSystem()/consumeFromControlSyste() and feedToDevice()/consumeFromDevice()

improved structure of network creation and added a FanOut to distribute values to multiple consumers

Introduced the VariableNetwork describing the connections of variables/accessors before things get actually instantiated. This is needed to generate an XML file containing the published variables based on that information.

This is a first mock implementation with very limited functionality. The idea is based on discussions during the OPC-UA control system adapter kickoff meeting and subsequent personal discussions.

fix for the latest DoocsAdapter: the module name is used as the location name, so the module has been renamed into "MyLocation" to match the DOOCS config file

removed the location name prefix from the process variable names, as it is not yet supported by the DOOCS adapter

git-svn-id: https://svnsrv.desy.de/desy/mtca4u/InstaCoSADev/trunk@2640 5f601a5c-88b9-47f3-b851-818f6741d00d

git-svn-id: https://svnsrv.desy.de/desy/mtca4u/InstaCoSADev/trunk@2638 5f601a5c-88b9-47f3-b851-818f6741d00d