Big refactor of ScriptedAnimations, moved into their own source file, lots of reorganization.

Source/Integration/AnimQueue.h

@@ -12,10 +12,11 @@
 //
 // An single animation step.
 // 
-// The body consists of a sequence of FlxAnimationField
-// records.  The body is encoded, to read the
-// FlxAnimationField records you need an
-// FlxAnimationStepDecoder.
+// This struct contains an entire animation step.  The
+// key-value pairs are stored in an encoded form, which is not
+// directly accessible to blueprints.  To read these key-value
+// pairs, blueprints will need to use UnpackAnimationStep or
+// AnimationStepGetXXX.
 //
 ////////////////////////////////////////////////
 
@@ -27,9 +28,15 @@ public:
 	UPROPERTY()
 	bool Finished;
 
-	UPROPERTY()
+	// The hash of the animation step, a 63-bit unique identifier.
+	//
+	UPROPERTY(VisibleAnywhere, BlueprintReadOnly)
 	int64 Hash;
 
+	// The Body contains all the key-value pairs in an encoded form.  To
+	// obtain these in a useful form, you will need to use
+	// UnpackAnimationStep or AnimationStepGetXXX.
+	//
 	UPROPERTY()
 	TArray<uint8> Body;