Various fix for MSVC build
meson: Make meson compiler option for setting c++11 to fix MSVC build MSVC cannot understand "-std=c++11"
build: include winsock2.h header before windows.h everywhere
build: Fix MSVC build error around std::max and std::min min and max macros were defined in windef.h
build: Fix undefined M_PI error with MSVC
build: Fix MSVC build error C2712 ../webrtc/base/platform_thread.cc(60): error C2712: Cannot use __try in functions that require object unwinding