Raster Master v4.6 R113

This release is mostly a bug fix that affects compiling under linux (ubuntu). The Map Editor was causing issues under linux when updating the Map thumb nail view. This function still does work the same way as it does in Windows. this fix only prevents crashing.

I have decided to change focus of Raster Master to support more modern languages more now. All old languages will still be supported but new features will be added for things like raylib and other game libraries.

The default startup sprite size is now 32x32 pixels and palette is set to 256 colors.

The default save/open format now is PNG instead BMP.