* redesign for faster cpu/gpu synch
* load + more async CPU
* use command encoder API and move more ops to use it
* make fence back-end generic + CPU only fence
* faster build
* fix async eval
* fixes + handle temporaries
* fix / improve cpu conv
* remove unused status, fix siblings
* fix extensions
* fix
* fix no cpu build
* format
* comments
* fix perf regression, remove unecessary abort
* fix events, task limit cpu
* fix waiting
* fix donation / temporaries in normalization
* start to cleanup/unify accelerate and common back-ends
* more progress
* simplify
* add half type and allow infs in simd exp
* unify softmax + quantized, more dispatches to simd quantized mm
* add sin/cos, use simd in vector-scalar ops
* faster CPU vectorize quant
* faster erf/erfinv
* faster binary and cleaner copy
* use recursive template for other ops
* more cleanup
* fix from cleanup
* more clean
* fix binary
* use contiguous iterator
* add 3d
* nits
* fix
* fix?
* fix
* fix rebase
* try cpp 20 for compile
* unary, binary, ternary in jit
* nits
* fix gather/scatter
* fix rebase
* reorg compile
* add ternary to compile
* jit copy
* jit compile flag
* fix build
* use linked function for ternary
* some nits
* docs + circle min size build
* docs + circle min size build
* fix extension
* fix no cpu build
* improve includes
* buffer donation
* fix to move shared pointer
* format
* gpu in place for copy and binary
* revert ops test
* cpu in place
* a little cleanup
* remove useless bench
