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Integrated using branch UE4-to-UE4-Fortnite-Simple (reversed) of change#2639444 by Geremy.Mustard on 2015/07/30 17:22:19.
[CL 2639455 by Geremy Mustard in Main branch]
- Moved example texture builder from QAGame tests to RuntimeAssetCache module for reference/documentation purposes.
- Changed bucket preloading code to use only cache key as file name (without bucket name).
[CL 2605476 by Mikolaj Sieluzycki in Main branch]
