Merge Aether tools

tools/mpeg/audio/MpegAudio.hx

@@ -0,0 +1,13 @@
+package mpeg.audio;
+
+class MpegAudio {
+    public var frames(default, null):Iterable<Frame>;
+    public var encoderDelay:Int;
+    public var endPadding:Int;
+
+    public function new(frames:Array<Frame>, encoderDelay:Int, endPadding:Int) {
+        this.frames = frames;
+        this.encoderDelay = encoderDelay;
+        this.endPadding = endPadding;
+    }
+}