Generate build files

BUILD

CMakeLists.txt

Makefile

binding.gyp

build.yaml

config.m4

gRPC-Core.podspec

grpc.def

grpc.gemspec

package.xml

src/python/grpcio/grpc_core_dependencies.py

src/ruby/ext/grpc/rb_grpc_imports.generated.c

src/ruby/ext/grpc/rb_grpc_imports.generated.h

test/core/surface/public_headers_must_be_c89.c

tools/doxygen/Doxyfile.core

tools/doxygen/Doxyfile.core.internal

tools/fuzzer/runners/percent_decode_fuzzer.sh

tools/fuzzer/runners/percent_encode_fuzzer.sh

tools/run_tests/sources_and_headers.json

tools/run_tests/tests.json