Update CMakeLists.txt

Set C++17 explicitly

Author: lum1n0us

product-mini/platforms/windows/CMakeLists.txt

@@ -13,7 +13,7 @@ set (WAMR_BUILD_PLATFORM "windows")
 # Reset default linker flags
 set (CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "")
 set (CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS "")
-
+set(CMAKE_CXX_STANDARD 17)
 add_definitions(-DCOMPILING_WASM_RUNTIME_API=1)
 
 # Set WAMR_BUILD_TARGET, currently values supported: