Merge pull request #11607 from yihuazhang/tsi_init

BUILD

CMakeLists.txt

Makefile

binding.gyp

build.yaml

config.m4

config.w32

gRPC-Core.podspec

grpc.gemspec

package.xml

src/core/plugin_registry/grpc_cronet_plugin_registry.c

src/core/plugin_registry/grpc_plugin_registry.c

src/core/tsi/gts_transport_security.c

src/core/tsi/gts_transport_security.h

src/python/grpcio/grpc_core_dependencies.py

tools/doxygen/Doxyfile.core.internal

tools/run_tests/generated/sources_and_headers.json

vsprojects/vcxproj/grpc/grpc.vcxproj

vsprojects/vcxproj/grpc/grpc.vcxproj.filters