Unreal: Fix Layout missing support for staticMesh and skeletalMesh families

[simonebarbieri]

Changelog Description

Fix missing support for staticMesh and skeletalMesh families in layouts.

Testing notes:

1. Publish from Maya a layout that includes staticMesh and/or skeletalMesh assets.
2. Try loading it in Unreal.

[LiborBatek]

When including skeletalMesh in maya and layout it loads into UE without fails but it misses the actual asset.
Here in maya

and in UE:

It is not present in the loaded Layout but at least imported as UAsset (as seen in the Content Browser)

Also tried to use Load Layout on existing after first Load Layout being not successful but without any advance, asset still
being missing.

[dee-ynput]

@antirotor @moonyuet
Is this still relevant? should we move it to Unreal repo?

[moonyuet]

@antirotor @moonyuet Is this still relevant? should we move it to Unreal repo?

I believe it is already moved to the repo. ynput/ayon-unreal#10

[LiborBatek]

Can be closed in a favour of this PR in ayon-unreal ...