* revert to c8204d0
* reapply #9742
* modify #9791
* reapply #9800
* reapply #9827
* revert parts of #9738
* reapply parts of #9785
* remove duplicated dsl-test code
* reapply parts of #9791
* correct version
* SDK - Separated the generated api client package
* Splitting the package build scripts
* Pinning the API client package version
* Moved import kfp_server_api to the top of the file
* Added the Mac OS X prerequisite install instructions
* Moved the build_kfp_server_api_python_package.sh script to the backend dir
* Updated the dependency version span