Create keystore files as non-root user/groups

[ArcticSnowman]

Use Case

By default the java_ks module create the target file with owner root group root (on linux systems), while this can be "fixed" with a post ACL change it would be cleaner if the module supported user and group parameters and created the target file as that user/group.

Describe the Solution You Would Like

java_ks accept user and groups parameters and creates/updates the target keystore as that user/group