Various configuration and organization changes in digitizer_roach_10gbe
Made type of client and server socket connections changeable
Added katcp::tap_start. Changed katcp::write_to_reg to katcp::write_uint_to_reg.
Added register names, and flushed out 10Gbe device setup.
implement use of enable and block_size registers, and filled out configure function
Use of 10Gbe connection implemented in digitizer_roach_10gbe.
Minor bug fixes to get things compiling