LineCompression: fixed zero run to include single word (rather than falling through to 4 bit sign extended)
randvals.hpp: added RandU64(() with limits
testcompress.cpp: added; Makefile: rules to build testcompress using target 'test'
randvals.hpp: added method Seed()
testcompress.cpp: improved using replay (if error found)
LineCompression.hpp: added verbose as argument to LineCompressorBDI constructor
testcompress.cpp: adding bdi testing
LineCompression.cpp: added verbose prints to LineCompressorBDI::AllInBounds()
testcompress.cpp: implementing bdi test/verification