* update qcom855+ benchmark

* Update README.md

* Update README.md

* add rock3a, update imx.7d benchmark

* update raspberrypi3b+ benchmark

* update

Co-authored-by: huangan <huangan@xylink.com>

* Support Ingenic X2000 & T40

T40 claimed to have MIPS32R2 with MSA, but tested not working on my unit, so set to mips32r2 without MSA.

* Add Ingenic T40XP benchmark result

* Update M1 benchmark

* Update openmp installation and use method

* Fixing typo

* And more info about Xcode

* add the param file of nanodet_m in benchmark

* add Noop layer into nanodet_m param for benchmark

* update nanodet_m.param

* add Apple M1 benchmark

* Update README.md

* quantize and dequantize tests

* unify activation and usability function

* drop NCNN_REQUANT cmake option, test dequantize requantize pack8, fix webassembly build

* benchmark use requantize int8 model

* openmp on webasm works

* fix compile flags

* dynamic kmp runtime initialization

* clang simpleomp ci

* fix dispatch on unique cpu

* runtime cpu dispatch

* force thread one

* disable openmp for coverage

* simplify test layer

* print NCNN_TARGET_ARCH

* less ci build variants

* weight fp16 storage option

* test convdw int8

* apple a12 a13

* ncnn_add_layer ncnn_add_shader cmake macro

* Add yolov4 example option.
Add yolov4-tiny for benchmark.

* Restyled by astyle

* Restyled by clang-format

* Restyled by astyle

Co-authored-by: Restyled.io <commits@restyled.io>

* online pipeline cache wip

* device-wide pipeline cache

* enable model-wide pipeline cache

* drop pre-created shader modules

* always use pipeline cache

* use implicit model-wide pipeline cache, code format

* code clean

* Add channel padding and blazeface model support.

* remove python binding

* remove std::min usage

* fix reference blob usage

* Increased padding test  coverage

* implement requested changes