Added the microphone permission to the iOS demo plug-in

examples/audio plugin demo/JuceDemoPlugin.jucer

@@ -107,7 +107,7 @@
       </MODULEPATHS>
     </LINUX_MAKE>
     <XCODE_IPHONE targetFolder="Builds/iOS" iosScreenOrientation="landscape" iosBackgroundAudio="1"
-                  iosBackgroundBle="1">
+                  iosBackgroundBle="1" microphonePermissionNeeded="1">
       <CONFIGURATIONS>
         <CONFIGURATION name="Debug" isDebug="1" optimisation="1" targetName="JuceDemoPlugin"/>
         <CONFIGURATION name="Release" isDebug="0" optimisation="3" targetName="JuceDemoPlugin"/>