FindwxWidgets.cmake on Windows on ARM support is broken

Development
1

wxWidgets installs the librarys with arm64 suffix when build for WoA. This was done in Building wxWidgets using CMAKE for ARM64 MSW, it generates the wrong lib folder name · Issue #23347 · wxWidgets/wxWidgets · GitHub

However FindwxWidgets.cmake still uses

      if(CMAKE_SIZEOF_VOID_P EQUAL 8)
        set(_WX_ARCH _x64)
      endif()

which causes it unable to find the library when using find_package(wxWidgets) on WoA.

I think this should be updated to use CMAKE_GENERATOR_PLATFORM like Fix MSW lib names for ARM64 with CMake build · vadz/wxWidgets@77db8b7 · GitHub did.

Thanks.