minor fixes to make zig-gobject work with a zig 0.16 project.

[timlau]

there is some problems with using a zig 0.16 project against zig-gobject.
building zig-gobject works fine and generation of bindings also, but when compiling against the generated binding there is issues.

• init arrays with .empty, not .{}
• use juicy main to get args
• use Io interface to write files
• use llvm to build examples, the native zig compiler, give .sframe errors when link with lib compiled with gcc 16.1.1

[ianprime0509]

Thank you!