Kha Shmup Tutorial Updated

It's been a little while and I wanted to make sure my KhaShmup tutorial worked with the latest version of Kha.

I have gone through the code as well as my previous posts and updated what I think to be everything. Not a lot has changed — mostly how the khafile resolves projects, and also the Audio1 play method no longer takes a boolean to determine if you want to stream the audio or not.

Let me know if I have missed anything, thank you!