nost: move nostalgia from wintouchemu to native touch hook (#827)

## Link to GitHub Issue or related Pull Request, if one exists
#814

## Description of change
Switch over Nostalgia from wintouchemu to native touch hook.

Nostalgia has some strict timing requirements (touches must be updated
on every acio poll) so this takes a slightly different path to maintain
mouse holds.

Only a handful of consumers of wintouchemu remain:

1. beatstream - but it's off by default, only enabled as errata for
buggy touchscreens, or if the user forces it on (for Show Cursor)
2. gitadora single-window overlay - this is just for mouse so not a big
deal.
3. MFC HG mode - not a priority to fix.

## Testing
Tested full screen and windowed mode with touch / mouse / poke.

src/spice2x/acio/core/core.cpp

@@ -4,6 +4,7 @@
 #include "launcher/launcher.h"
 #include "misc/wintouchemu.h"
 #include "rawinput/rawinput.h"
+#include "touch/native/nativetouchhook.h"
 
 // static stuff
 static int ACIO_WARMUP = 0;
@@ -140,8 +141,9 @@ static int __cdecl ac_io_update(int a1) {
     // flush device output
     RI_MGR->devices_flush_output();
 
-    // update wintouchemu
+    // update touch emulation
     wintouchemu::update();
+    nativetouch::refresh_contact_lifetime();
 
     return 1;
 }