BuildSqueakSpurTrunkVMMakerImage.st sort versions, use FileAttributesPlugin.oscog
BuildSqueakSpurTrunkVMMakerImage.st sort versions, use FileAttributesPlugin.oscog

BuildSqueakSpurTrunkVMMakerImage.st currently assumes that packages
returned from a repository are sorted by version, however this doesn't
appear to be true for smalltalkhub.com.

- Sort packages by version to ensure the latest is used.
- Load FileAttributesPlugin.oscog (which replaced FileAttributesPlugin)

timfel/squeakvm,OpenSmalltalk/vm,timfel/squeakvm,timfel/squeakvm,OpenSmalltalk/vm,timfel/squeakvm,timfel/squeakvm,timfel/squeakvm,OpenSmalltalk/vm,OpenSmalltalk/vm,timfel/squeakvm,OpenSmalltalk/vm,OpenSmalltalk/vm,OpenSmalltalk/vm,timfel/squeakvm,OpenSmalltalk/vm