InAppPurchases: add OSX target to IAP demo app.

examples/InAppPurchase/InAppPurchase.jucer

@@ -94,6 +94,30 @@
         <MODULEPATH id="juce_audio_utils" path="../../modules"/>
       </MODULEPATHS>
     </ANDROIDSTUDIO>
+    <XCODE_MAC targetFolder="Builds/MacOSX" iosInAppPurchases="1">
+      <CONFIGURATIONS>
+        <CONFIGURATION name="Debug" isDebug="1" optimisation="1" linkTimeOptimisation="0"
+                       targetName="InAppPurchase"/>
+        <CONFIGURATION name="Release" isDebug="0" optimisation="3" linkTimeOptimisation="1"
+                       targetName="InAppPurchase"/>
+      </CONFIGURATIONS>
+      <MODULEPATHS>
+        <MODULEPATH id="juce_product_unlocking" path="../../modules"/>
+        <MODULEPATH id="juce_opengl" path="../../modules"/>
+        <MODULEPATH id="juce_gui_extra" path="../../modules"/>
+        <MODULEPATH id="juce_gui_basics" path="../../modules"/>
+        <MODULEPATH id="juce_graphics" path="../../modules"/>
+        <MODULEPATH id="juce_events" path="../../modules"/>
+        <MODULEPATH id="juce_data_structures" path="../../modules"/>
+        <MODULEPATH id="juce_cryptography" path="../../modules"/>
+        <MODULEPATH id="juce_core" path="../../modules"/>
+        <MODULEPATH id="juce_audio_utils" path="../../modules"/>
+        <MODULEPATH id="juce_audio_processors" path="../../modules"/>
+        <MODULEPATH id="juce_audio_formats" path="../../modules"/>
+        <MODULEPATH id="juce_audio_devices" path="../../modules"/>
+        <MODULEPATH id="juce_audio_basics" path="../../modules"/>
+      </MODULEPATHS>
+    </XCODE_MAC>
   </EXPORTFORMATS>
   <MODULES>
     <MODULE id="juce_audio_basics" showAllCode="1" useLocalCopy="0" useGlobalPath="0"/>