MacOS not supported

[digitalcortex]

I noticed that MacOS was mentioned in installation steps, so decided to give it a try.

After fighting numerous compilation errors I was able to finally compile the project but to my surprise I discovered that all shaders version is 430.

Mac OS does not support anything above 410, hence I tried reducing the shader version everywhere to give it a try. As the result, app is crashing with error: Your system does not support shaders!. zsh: segmentation fault.

@angeluriot could you please elaborate on that issue? Is Galaxy simulation actually supporting Mac OS build, was it tested?

[angeluriot]

I don't have much time at the moment so there won't be a fix for a while, but if you do something you can make a pull request