includes pooled plot support in pre-release.

Upgraded catalog item(s)

Document scaling down app on upgrade for snapshot

        This commit upgrades chia, ipfs, minio, plex catalog item(s).

This commit documents change how chart devs can have certain workloads to be scaled down before taking a snapshot of the application's volumes on an upgrade of the application to a newer catalog item version.

Update charts for 21.06

Add metadata to allow automated updates of catalog item(s)

Update plex docker image version

Update plex docker image version

Update chia to 1.1.6 from upstream

Allow specifying host path volumes/environment variables for chia

Update plex application to use latest tagged docker image