Changes:
- Added "2-pass DWord/QWord coverage" smokers that does the same as 1-pass coverage smoker but with automatic selection of the most populated sector
- The "DWord hash entropy" smoker, of course absolutely useless
- -bBUFSIZE option selects size of analyzed blocks: -b64k, -b4m/-b4, -b1g
- print numbers of first 10 incompressible blocks
- hashing uses SSE 4.2 crc32c instruction in order to make distribution more fair