change calloc interface

support idfv3.3

quantization and bugfix

update changelog for v0.9.1

target to cn docs

http cam example

Merge branch 'misc/open_forward_sourc'

Init commit

Merge branch 'update/changelog' into 'master'

update changelog

See merge request face-recognition-framework/esp-who!23

modify mkmodel to mkmodel_linux_x64, other format for different os wi…

…ll come soon