GB Studio Font tools fixed for macOS

The macOS binaries were not working because I tried cross-compiling from Linux, but this didn’t create proper binaries for macOS.

So I went visit a friend who has a Mac, and compiled the three tools there. GBSFontInverter and GBSFontJSON compiled perfectly on the Mac, and work just as well as they do on Linux and Windows.

But GBSFont2BG for macOS gave me some issues: it doesn’t remove the temp files (you’ll see a lot of png files after running it) and doesn’t generate the sample image (resized 3x). But the main thing works, generating the Background.png with your text! 🥳