It was awkward for the generated code to call an API that offered
both insecure_server and secure_server as well as insecure_stub and
secure_stub. With this change there is just a single server function
and a single stub function and security is decided based on arguments
passed.
Moves the Python protoc plugin output directory to an auto-generated
temporary directory. Has the build configuration set by environment
variable (consistent with `tools/run-tests/run_tests.py`'s set envvars).
Nathaniel Manista
Masood Malekghassemi