Separate the grpc_cli targets into a separate library

Makefile

build.yaml

tools/run_tests/sources_and_headers.json

vsprojects/vcxproj/grpc++_test_util/grpc++_test_util.vcxproj

...vcxproj/grpc++_test_util/grpc++_test_util.vcxproj.filters

vsprojects/vcxproj/grpc_cli_libs/grpc_cli_libs.vcxproj

...jects/vcxproj/grpc_cli_libs/grpc_cli_libs.vcxproj.filters

vsprojects/vcxproj/test/cli_call_test/cli_call_test.vcxproj

vsprojects/vcxproj/test/grpc_cli/grpc_cli.vcxproj