Document ZED SDK installation options

Could you document all possible options for the embedded installation script?
Not all of the following options are documented in the docs:

	-h --help
	--silent
	--runtime_only
	--skip_tools
	--skip_cuda
	--skip_od_module
	--skip_python
	--nvpmodel=0 (Jetson only)

Hi @gartangh
thank you for reporting. The team noted it and we will add the documentation as soon as possible.