Update installation_osx.md

[yousseb]

1. Remove dependency on glfw3 in docs. Suggest Vulkan instead.
2. We do not necessarily require Xcode. CommandLineTools are sufficient
3. Add instructions on how to package librealsense in applications.

[dorodnic]

Hi @yousseb
Thank you for the patch.
Looks good to me 👍
Perhaps you know a better solution to the ld: library not found for -lusb-1.0 error? The best I could find was adding /usr/local/lib to LIBRARY_PATH, but I have a feeling there is a better way.

[omarfakhr]

I still cannot manage to install the packages. Vulkan sdk does not work. make -j does not work. Is there any possibility to get the whole process until the Xcode project is built and the camera is running?