5.3.0
Fix comment
Add initial support for Intel AVX512F
Add TFloat data type for neural network
bugfix of FMA port to FAST_FLOAT
Add missing check for __ARM_NEON
reformat code (files with tabs)
Prepare using float instead of double for LSTM calculations
Implement DotProductSSE() for FAST_FLOAT
Set /Os for some 32 bit MS compilers (fixes #3769)
Detect availability of AVX512-VNNI