* postBuildActions can no longer use the Module instance directly, since
  Chisel3 prohibits its instantiation outside of a Driver
* added a configuration object of type Any instead, which will be passed
  to the postBuildActions - we do not actually need the Module instance,
  only the configuration options passed to it
* Chisel3 no longer supports renaming of top-level ports (setName has
  vanished); auto-inference of the AXI-interfaces is not possible
  without renaming
* fixed by adding interface definitions to CoreDefinition:
* each module may declare "known" interfaces; in this case the IP-XACT
  Tcl will match to the generated port names manually