Add a test that reproduces server partial message read bug

Makefile

test/core/bad_client/bad_client.h

test/core/bad_client/gen_build_yaml.py

test/core/bad_client/tests/server_registered_method.c

test/core/bad_client/tests/server_registered_method.headers

...core/gen_server_registered_method_bad_client_test_body.py

tools/run_tests/sources_and_headers.json

tools/run_tests/tests.json

vsprojects/buildtests_c.sln

...ent_test/server_registered_method_bad_client_test.vcxproj

.../server_registered_method_bad_client_test.vcxproj.filters