[MacOS] Ask user for permission to access microphone

This is required for MacOS 10.14 and later. This also requires an explanation why
access is required in the apps Info.plist. Hence added custom Info.plist templates
for each app.

src/blackcore/context/contextaudioimpl.h

@@ -30,6 +30,7 @@
 #include "blackmisc/network/userlist.h"
 #include "blackmisc/settingscache.h"
 #include "blackmisc/icons.h"
+#include "blackmisc/macos/microphoneaccess.h"
 #include "blacksound/selcalplayer.h"
 #include "blacksound/notificationplayer.h"
 
@@ -120,6 +121,12 @@ namespace BlackCore
             CContextAudio *registerWithDBus(BlackMisc::CDBusServer *server);
 
         private:
+            void initVoiceChannels();
+            void initInputDevice();
+            void initOutputDevice();
+            void initAudioMixer();
+            void initVoiceVatlib(bool allocateInput = true);
+
             //! \copydoc IVoice::connectionStatusChanged
             //! \sa IContextAudio::changedVoiceRooms
             void onConnectionStatusChanged(IVoiceChannel::ConnectionStatus oldStatus, IVoiceChannel::ConnectionStatus newStatus);
@@ -152,6 +159,11 @@ namespace BlackCore
             const int MinUnmuteVolume = 20; //!< minimum volume when unmuted
             int m_outVolumeBeforeMute = 90;
 
+        #ifdef Q_OS_MAC
+            BlackMisc::CMacOSMicrophoneAccess m_micAccess;
+            void delayedInitMicrophone();
+            #endif
+
             // For easy access.
             QSharedPointer<IVoiceChannel> m_channel1;
             QSharedPointer<IVoiceChannel> m_channel2;