* Abort calls in AssImp, which occur when an assert is hit in builds that have asserts enabled (like debug) no longer generate a popup. Instead, they are captured as errors and an asset processing failure.
* Added missing include
* Added check for _WRITE_ABORT_MSG, so platforms that don't have it but have signals enabled (Linux profile) compile correctly
* Helios - LYN-3250 - Fixed morph targets for meshes that had multiple materials (#374)
Fixed morph targets for meshes that had multiple materials and were split by AssImp: Recombined them into one mesh in the O3DE scene graph, so the behavior would match FBX SDK.
AMZN-stankowi
alexpete