* skip dynamic tensor index

* handle clone oom

* x86 vulkan fallback
* comment about bf16s

* quantize gemm

* write gemm quantize scales

* update doc

* less openmp args

* x86 riscv fallback

* skip gemm vulkan int8

* fix noint8 test, fix arm bf16 test

* enable vfpv4 on neon build only

* fix gemm vulkan without C

* fp16 pack8 output

* enable elempack=8 only for asimdhp+

* tiled gemm int8 test

* opt arm64 tiles, fix asimdhp dispatch

* fix ncnn tools crash with compound layer creation

* write gemm weight data

* pnnx support grid_sample op

* complete the permute and gridsample operator fusion

* spilt calculation into two stages and support permute fusion

* implement 4d memorydata

* fix ncnnoptimize memorydata 4d

* fix crash in ncnn2table for missing weight data in lightmode

* Update modelwriter.h

* fix sigmoid returns nan with very large input

* implement convolution1d and pooling1d

* add conv1d pool1d test

* fuse convolution1d activation

* update operator doc

* fix vulkan adpative pooling