Implement voice call tutorial app

samples/tutorials/voice/README.md

+ * Make sure that you use a voice SIM and not a data SIM for this tutorial.
+ * This tutorial only allows you to make a phone call from mangOH to another phone
+ * Insert a headset audio jack into CN500 to listen to the audio
+ * Mangoh must be registered on Network with the SIM in ready stat by entering `cm sim`
+ * Make sure voiceCallService is started by entering: `app start voiceCallService`
+ * Check "logread -f "
+ * Execute app : app runProc  mangohVoiceCall --exe=mangohVoiceCall --  <Destination phone number>
+ * Follow INFO instruction in traces.
+ 

samples/tutorials/voice/mangohVoiceCall.adef

+executables:
+{
+    mangohVoiceCall = ( mangohVoiceCall )
+}
+
+processes:
+{
+    envVars:
+    {
+        LE_LOG_LEVEL = DEBUG
+    }
+}
+
+start: manual
+
+bindings:
+{
+    mangohVoiceCall.mangohVoiceCall.le_voicecall -> voiceCallService.le_voicecall
+    mangohVoiceCall.mangohVoiceCall.le_audio -> audioService.le_audio
+}

samples/tutorials/voice/mangohVoiceCall/Component.cdef

+sources:
+{
+    mangohVoiceCall.c
+}
+
+requires:
+{
+    api:
+    {
+        le_voicecall.api
+        le_audio.api
+        le_mdmDefs.api [types-only]
+    }
+}