V1.27.0 emotionfx memory fixes

[mik403]

These are set of memory improvements, as discussed on the private forum, LY-23014 See discussion topic for more info and results.

Next changes were made:

• Decreased translation precision on MotionDataBuilder
• Shrink shared data in Importer to reclaim some memory
• Change reservation strategy in MotionInstancePool to reduce fragmentation
• Released unused raw asset data in EmotionFX asset to reclaim memory after asset initialization
• Removed GPU deformed meshes from CPU after its skinning

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[AMZN-Gene]

Thanks, this is great! I'll work on getting these optimizations into LY Vanilla!