xilinx_vivado: add hierarchical utilization report
xilinx_vivado: use .bat on Windows platforms (otherwise Vivado uses Unix scripts...)
kc705: add Ethernet pins
crc: generate error asynchronously to avoid stalling the flow and simplify
bus/csr: add configurable address_width (needed more than 32 modules with CSR)
flow/actor, actorlib/structuring: add packet support
Merge branch 'master' of github.com:m-labs/migen