edited to work with -nullrhi flag

[gwh0014]

I edited two files the gltfRuntimeAssetActor.cpp and the gltfRuntimeParserStaticMeshes.cpp in both files i added the #include "RHI.h" in order to add checks to see if the renderer was enabled

now when running a game in headless mode through an unreal engine 5 built game you can use the -nullrhi flag in order to disable the renderer without any errors

This personally sped my game up 4x

[rdeioris]

Thanks, it will probably needs some refactoring but it is a good base to support nullrhi. I will be back to you as soon as I have some cycle for it. Thanks again.

[gwh0014]

No problem!

[gwh0014]

I apologize for the messiness I was adding checks to different parts of the code to see what worked until it worked