v9.7:

- Added ASM mode for RX460/560 cards, up to 30% speedup for second coin in dual mode.
- Improved ETH speed for some Nvidia cards.
- Improved speed in dual mode for Nvidia cards.
- reduced initialization time.
- a few minor bug fixes and improvements.
- EthMan: added ability to select several rigs.
- EthMan: several minor bug fixes and improvements.