Support for 32/64 bits achitecture

It would be great to have 32/x64 platform distinction. For exemple: deb32, AppImage32,rpm32 and keep current platform without any suffix for 64 bits?

As of now, when a release have 2 different packages for the same platform (32 bits and 64 bits), Hazel redirect to last indexed package.

I'll maybe make a PR later!