Move Apple retained platform state into platform target

PanoPainter/GameViewController.m

@@ -10,7 +10,7 @@
 #import "GameViewController.h"
 #import <OpenGLES/ES3/glext.h>
 #include "app.h"
-#include "platform_legacy/legacy_platform_state.h"
+#include "platform_apple/apple_platform_services.h"
 #include "settings.h"
 #import "objc_utils.h"
 #import <MobileCoreServices/MobileCoreServices.h>
@@ -577,7 +577,7 @@ bool is_tap = true;
     [super viewDidLoad];
     input_enabled = NO;
     App::I = new App;
-    pp::platform::legacy::set_legacy_apple_state(
+    pp::platform::apple::set_legacy_apple_state(
         self,
         (AppDelegate*)[[UIApplication sharedApplication] delegate]);
     App::I->initLog();