[DOCS] Examples on common setups for physical sky

[chanmosq]

Describe the issue briefly

• Instructions on setting up global lighting and physical sky. A common scenario looks like:

• Instructions on adding directional light as sunlight to a physical sky. A common scenario looks like:

Which page(s) / section(s) are affected?

Possibly in the physical sky component reference: https://www.o3de.org/docs/user-guide/components/reference/atom/physical-sky/ Or in the tutorials: https://www.o3de.org/docs/learning-guide/tutorials/environments/

Does this work have an engineering dependency? What is it?

None

[chanmosq]

@HogJonny-AMZN @shawstar Can you provide some insight on what these common scenarios might look like? Also, how they may be created in O3DE?

@yuyihsu For awareness.