Add v1beta1 snapshot CRDs to cluster addons

[RaunakShah]

What type of PR is this?

/kind cleanup

This PR modifies the snapshot CRD Addons to mirror CRDs found in https://github.com/kubernetes-csi/external-snapshotter/tree/master/client/config/crd

Adds the v1beta1 APIs as done in kubernetes-csi/external-snapshotter#718

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?

NONE

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

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[RaunakShah]

/sig storage

[xing-yang]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: RaunakShah, xing-yang

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[jberkus]

If this adds an API, are you sure we don't need a release note?

[RaunakShah]

@jberkus these YAMLs are only used in the tests and are basically a revert of 20e7720