AGPX Game Maker v2.2.0

In this version the tool was renamed to a less generic "AGPX Game Maker". The version 2.2.0, introduces some important bug fixes and support for disk I/O (with a new demo). Here the change list:

• added I/O instructions to read/write to disk (added the "Disk" demo);
  
• improved naming of the generated file .prg;
• added ability to build a .D64 starting, from a blank disk or an existing .D64;
• improved compatibility with the latest version of Oscar64;
• fixed a bug in the ActorsMap related to an incorrect enumeration of Actors (in some cases);
• fixed a bug in the ActorsMap and Screen editors that reversed the drawing order of actor sprites;