WildRig Multi 0.44.2

• significant improvements of qhash for AMD gpu's
• improved qhash speed on Intel Arc B-series

updated reference hashrates for qhash on AMD and Intel:

stock Radeon 9070XT  ~220kh/s
stock Radeon 7900XTX ~270kh/s
stock Radeon 6800XT  ~125h/s
stock Radeon 5600XT  ~45kh/s
stock Radeon Vega64  ~68kh/s
stock Radeon RX590   ~37kh/s

stock Intel Arc A750 ~60kh/s
stock Intel Arc B580 ~53kh/s