Many changes associated with testing with v2 hardware

[peter-madigan]

• implements correct endianness translation for the Configuration_v2 class
• fixes default v2 chip configuration
• add controller configuration for the COB test board
• add controller configuration for the 3x3 tiles
• fix bug found in compound data getter for Configuration_v2 class (assumed all least-significant bits were used)
• fix typos in Configuration_v2 bit ranges / etc
• implement interface to CMOD fpga on
• modify PacketCollection extract method to use packet attributes rather than dict representation of packet - improves speed dramatically