//network/networkResource: unless it turns out that this element is used by someone, deprecate this element

During a review of the current 3.2 model it was noted, that the network resource modelling, that seems to have been taken over from the RTM model, doesnt serve any purpose in railML 3. Normally, NetElements are specified and referenced by a //network/level. However it is also possible to specify networkResources at the same level. It doesnt seem clear what the purpose of this would be. A forum post is to be made for this and if no reply is received, or replies are only in approval of deprecation, the element is supposed to be deprecated with railML 3.3.