Interface criteria matching misses subinterfaces (aka virtual interfaces)

NetworkInterfaceService.resolveInterface() is only iterating through the NetworkInterface enumeration returned by NetworkInterface.getNetworkInterfaces(). It also needs to iterate through any NI's returned by calling ni.getSubInterfaces() on each of the non-virtual interfaces.

Goal: we want this to work:

<nic name="eth0:1"/>

Right now only this will work:

<nic name="eth0"/>