* fix pyncnn build

* fix sub mat cstep
* fix embed
* rnn/lstm/gru int8 test without rounding diversity

results is empty when no objects are detected in frame so non iterable error fires. added itrable check on results

Co-authored-by: Jeremy Rand <jeremyrand@danwin1210.de>

* vulkan-driver-loader.md
* static vulkan on apple

* add option for enabling vulkan in setup.py
* load winograd type options for pybind.
* enable the usage of humbletim/install-vulkan-sdk in ci
* vulkan-loader with release build
* python setup.py install --vulkan=on
* moltenVK for x86_64 macos
* remove universal2  temporarily

Co-authored-by: theflyingzamboni <theaerialzamboni@gmail.com>

support yolov8s ncnn

* update release ci

* find modern glslang

* parallel jobs on windows

fix rect position bug.

Co-authored-by: ElvisYu <elvisyuovo@gmail.com>
Co-authored-by: 余浩文 <m18107220188@163.com>
Co-authored-by: Zr2223 <67497651+Zr2223@users.noreply.github.com>

* just a spell check

* some misspell

* Fixing TypeError assertions in pytest

* Add Compiled Python files to gitignore

* Fixing classifiers of Pypi for local compliler

* Disable aarch64 in building Python

* 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

* use local pool allocator

* detach extract feat from local allocator

* fix test

* add test python vulkan

* add python vulkan ci on linux with 3.6 and 3.8

* fix ci vulkan icd

* nanodet python demo

* add clip

* fix clip wh

* remove nms package requirement

* fix model zoo download files

* fix yolov4.bin download split

* fix python/examples/shufflenetv2

* release python

* fix twine upload only push tags, fix linux bdist_wheel so path error

* fix long_description_content_type

* remove log print

* set cibuildwheel version 1.6.3

* add pyproject.toml

* set release python only on push tag

* add ci build python 2.7

* remove python2.7; update readme.md

Co-authored-by: Cai Shanli <caishanli25@gmail.com>

* add pytest net

* fix typo error

* fix header year