message: Add Fuchsia platform defines
diff: @@ -2075,7 +2075,7 @@ void VulkanHppGenerator::appendDispatchLoaderDynamic( std::string & str )
  {
  if ( !vulkanLibraryName.empty() )
  {
  -# if defined( __linux__ ) || defined( __APPLE__ ) || defined( __QNXNTO__ )
  +# if defined( __linux__ ) || defined( __APPLE__ ) || defined( __QNXNTO__ ) || defined(__Fuchsia__)
  m_library = dlopen( vulkanLibraryName.c_str(), RTLD_NOW | RTLD_LOCAL );
  # elif defined( _WIN32 )
  m_library = ::LoadLibraryA( vulkanLibraryName.c_str() );
  @@ -2085,7 +2085,7 @@ void VulkanHppGenerator::appendDispatchLoaderDynamic( std::string & str )
  }
  else
  {
  -# if defined( __linux__ ) || defined( __QNXNTO__ )
  +# if defined( __linux__ ) || defined( __QNXNTO__ ) || defined(__Fuchsia__)
  m_library = dlopen( "libvulkan.so", RTLD_NOW | RTLD_LOCAL );
  if ( m_library == nullptr )
  {
  @@ -2128,7 +2128,7 @@ void VulkanHppGenerator::appendDispatchLoaderDynamic( std::string & str )
  {
  if ( m_library )
  {
  -# if defined( __linux__ ) || defined( __APPLE__ ) || defined( __QNXNTO__ )
  +# if defined( __linux__ ) || defined( __APPLE__ ) || defined( __QNXNTO__ ) || defined(__Fuchsia__)
  dlclose( m_library );
  # elif defined( _WIN32 )
  ::FreeLibrary( m_library );
  @@ -2141,7 +2141,7 @@ void VulkanHppGenerator::appendDispatchLoaderDynamic( std::string & str )
  template <typename T>
  T getProcAddress( const char* function ) const VULKAN_HPP_NOEXCEPT
  {
  -# if defined( __linux__ ) || defined( __APPLE__ ) || defined( __QNXNTO__ )
  +# if defined( __linux__ ) || defined( __APPLE__ ) || defined( __QNXNTO__ ) || defined(__Fuchsia__)
  return (T)dlsym( m_library, function );
  # elif defined( _WIN32 )
  return (T)::GetProcAddress( m_library, function );
  @@ -2153,7 +2153,7 @@ void VulkanHppGenerator::appendDispatchLoaderDynamic( std::string & str )
  bool success() const VULKAN_HPP_NOEXCEPT { return m_library != nullptr; }
  private:
  -# if defined( __linux__ ) || defined( __APPLE__ ) || defined( __QNXNTO__ )
  +# if defined( __linux__ ) || defined( __APPLE__ ) || defined( __QNXNTO__ ) || defined(__Fuchsia__)
  void * m_library;
  # elif defined( _WIN32 )
  ::HINSTANCE m_library;
  @@ -15690,7 +15690,7 @@ int main( int argc, char ** argv )
  #endif
  #if VULKAN_HPP_ENABLE_DYNAMIC_LOADER_TOOL == 1
  -# if defined( __linux__ ) || defined( __APPLE__ ) || defined( __QNXNTO__ )
  +# if defined( __linux__ ) || defined( __APPLE__ ) || defined( __QNXNTO__ ) || defined(__Fuchsia__)
  # include <dlfcn.h>
  # elif defined( _WIN32 )
  typedef struct HINSTANCE__ * HINSTANCE;
  