[Feature Request] Importing image files into the Asset Editor

[drludos]

Hi! First of all thanks a lot for creating such an amazing "all-in-one" IDE for retrodev, and for your books!

I really love the Asset Editor to draw / fix assets on the fly. However, when working for an actual game project it can be quite long to draw all the assets inside this tool (as there is no copy-paste function, no cancel, etc.).

I think a great feature addition to solve this "issue" would be to be able to import an image into the asset editor. Even a simple and straightforward import for a BMP or PNG file would be wonderful!

That way, we could use external drawing programs to draw the assets, and then upload the image to Asset Editor so it can "convert" it to the relevant assembly format.

For context, I'm currently toying with Atari 7800 and, AFAIK, there is no program that can convert an image file (whatever the format) to the weird graphic format used by the console. The only tools available (for 7800basic) are outputing assembly code in DASM format, that can't be used with CA65.

Anyway, thanks for your great work!