- added optional UAT parameter PackageEncryptionKeyFile to specify the encryption key file to use during packaging for supporting platforms
- example usage: -PackageEncryptionKeyFile=C:\MyProject\MyEncryptionKey.key
#rb Andrew.Firth, David.Harvey
#lockdown michal.valient
#preflight 616e13e96e12ff000113feab
#ROBOMERGE-AUTHOR: eric.mcdaniel
#ROBOMERGE-SOURCE: CL 17861698 via CL 18004085 via CL 18369956 via CL 18369989
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v895-18170469)
[CL 18370000 by eric mcdaniel in ue5-release-engine-test branch]