CSI Snapshot chart to check if CRD exists

[pipoe2h]

It would be nice for the CSI Snapshot chart to check if the Snapshot CRD already exists in the cluster. I was reusing my automation to install the chart with several different distributions, and it was failing for some of them because the CRD was already installed.

The documentation mentions that installing this chart is only needed if the CRD doesn't exist, but it would be a nice addition the check 😄