rename coords to size in struct MonCoords

include/data2.h

@@ -5,7 +5,7 @@ struct MonCoords
 {
     // This would use a bitfield, but some function
     // uses it as a u8 and casting won't match.
-    u8 coords; // u8 x:4, y:4;
+    u8 size; // u8 width:4, height:4;
     u8 y_offset;
 };