Hare generator
Hello,

I've done work on extending glad to add a generator for the [Hare programming language](https://harelang.org/). It's currently in relatively good shape, and the OpenGL support in particular is used in some projects. However, there are still some issues to sort out, such as a problem that causes Vulkan extensions to not work correctly.

I wanted to ask what level of polish you would like to see in a generator before allowing it to be merged upstream. Would you like it to have full functionality and be polished? Or would you welcome a PR in a functional state that still requires some improvements, with subsequent PRs to add improvements?

Thanks!