Fixing Windows port.

Makefile

build.json

src/core/iomgr/resolve_address_posix.c

src/core/iomgr/resolve_address_windows.c

src/core/iomgr/tcp_client_windows.c

src/core/iomgr/tcp_server_windows.c

src/core/support/cpu_windows.c

src/core/surface/init.c

vsprojects/vs2013/grpc.vcxproj

vsprojects/vs2013/grpc.vcxproj.filters

vsprojects/vs2013/grpc_shared.vcxproj

vsprojects/vs2013/grpc_shared.vcxproj.filters

vsprojects/vs2013/grpc_unsecure.vcxproj

vsprojects/vs2013/grpc_unsecure.vcxproj.filters