Fix issue with heading being incorrectly handled

So we've been doing heading wrong all these years. You will need to run
a script to fix your quests and required SQL to fix DB.

This fixes a ton of random issues with headings and as gives us a better
resolution on headings :P

common/patches/rof2_structs.h

@@ -400,7 +400,7 @@ struct Spawn_Struct_Position
 
 struct Spawn_Struct_Position
 {
-	signed	padding0000:12;
+	signed	angle:12;       // pitch of camera?
 	signed	y:19;
 	signed	padding0001:1;
 
@@ -416,7 +416,7 @@ struct Spawn_Struct_Position
 	signed	z:19;
 	signed	padding0020:3;
 
-	signed  animation:10;   // animation
+	signed  animation:10;   // SpeedRun
 	signed	deltaY:13;
 	signed	padding0023:9;
 };