* build sdk python api in standard-alone manner
* enable MMDEPLOY_BUILD_SDK_MONOLITHIC and MMDEPLOY_BUILD_EXAMPLES in prebuild config
* link mmdeploy to python target when monolithic option is on
* checkin README to describe precompiled package build procedure
* use packaging.version.parse(python_version) instead of list(python_version)
* fix according to review results
* rebase master
* rollback cmake.in and apis/python/CMakeLists.txt
* reorganize files in install/example
* let cmake detect visual studio instead of specifying 2019
* rename whl name of precompiled package
* fix according to review results
lvhan028