Sfx playlist asset working (#1109)

* GroundWork

-Reverted SFXPlaylist since it is going to be made from an asset now instead.
-Added extra options to soundAssets description.
-SFXPlaylist may need an onAdd function

* Update sfxController.cpp

* SFXPlaylist data

-Added sfxPlaylist init persist fields for the slots to sound asset
-Added logic to fil sfxPlaylist if more than 1 slot is filled

* Update SoundAsset.cpp

to stop git ci complaining, assetImporter........

* Update SoundAsset.h

* sfxPlaylist

-Fix: incomplete type error
-Added onAdd and onRemove to playlist
-SoundAsset getProfile define now returns playlist if the asset is a playlist.

* Update SoundAsset.h

-updated asset array to return playlist or profile depending on what the asset is

* SFXPlaylist working

-SFXPlaylist works
AudioChannelDefault gets its volume set to 0 for some reason and was throwing off making sfxPlaylist inaudible.

Still an exception when closing if using a playlist trips on line 355 of sfxSound

* Update sfxSound.h

* setSoundFile index null fix

* Update SoundAsset.h

* Update SoundAsset.h

* netstream safety in case of a null asset assignment

* Update sfxController.cpp

added safeties around a null playlist trying to play.

* Update with Az's asset err code changes

---------

Co-authored-by: AzaezelX <quillus@hotmail.com>

Engine/source/sfx/sfxController.cpp

@@ -167,7 +167,7 @@ void SFXController::_compileList( SFXPlayList* playList )
       
       // If there's no track in this slot, ignore it.
       
-      if( !playList->getTrackProfile(slotIndex))
+      if( !playList->getSlots().mTrack[slotIndex])
          continue;
          
       // If this is a looped slot and the list is not set to loop
@@ -394,7 +394,13 @@ bool SFXController::_execInsn()
       case OP_Play:
       {
          SFXPlayList* playList = getPlayList();
-         SFXTrack* track = playList->getTrackProfile(insn.mSlotIndex);
+         if (playList == NULL)
+         {
+            endUpdate = true;
+            break;
+         }
+
+         SFXTrack* track = playList->getSlots().mTrack[insn.mSlotIndex];
          
          // Handle existing sources playing on this slot and find
          // whether we need to start a new source.
@@ -817,6 +823,9 @@ void SFXController::_update()
    
    SFXPlayList* playList = getPlayList();
 
+   if (!playList)
+      Parent::stop();
+
    // Check all sources against the current state setup and
    // take appropriate actions.