cpuminer-opt-3.23.0

#398: Prevent GBT fallback to Getwork on network error.
#398: Prevent excessive logs when conditional mining is paused when mining solo.
Fix a false start if stratum doesn't immediately send a new job after connecting.
Tweak diagonal shuffle in Blake2b & Blake256 1-way SIMD to reduce latency.
CPUID support for AVX10.
Initial changes to AVX2 targeted code in preparation for AVX10.
Code cleanup and miscellaneous small improvements.