Re-added WinRT support until we're sure that it's no longer being used

build-scripts/fnsince.pl

@@ -88,6 +88,12 @@ foreach my $release (@releases) {
     close(PIPEFH);
 }
 
+# these are incorrect in the dynapi header, because we forgot to add them
+#  until a later release, but are available in the older release.
+$funcs{'SDL_WinRTGetFSPathUNICODE'} = '2.0.3';
+$funcs{'SDL_WinRTGetFSPathUTF8'} = '2.0.3';
+$funcs{'SDL_WinRTRunApp'} = '2.0.3';
+
 if (not defined $wikipath) {
     foreach my $release (@releases) {
         foreach my $fn (sort keys %funcs) {