Add clang-format to sanity

include/grpc++/impl/call.h

include/grpc++/security/auth_metadata_processor.h

include/grpc++/server.h

include/grpc/census.h

include/grpc/compression.h

include/grpc/grpc.h

include/grpc/grpc_security.h

src/core/channel/channel_args.h

src/core/client_config/lb_policies/round_robin.h

src/core/client_config/subchannel.h

src/core/security/credentials.h

src/core/security/handshake.h

src/core/security/security_connector.h

src/core/support/time_precise.h

src/cpp/server/secure_server_credentials.h

test/cpp/interop/client_helper.h

tools/distrib/clang_format_code.sh

tools/dockerfile/grpc_clang_format/Dockerfile

...ckerfile/grpc_clang_format/clang_format_all_the_things.sh

tools/run_tests/run_sanity.sh