Changes in the SMB v1beta2 API

[mauriciopoppe]

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespaces from that line:

/kind cleanup
/kind feature

What this PR does / why we need it:

Adds all the changes as per #132, also adds integration tests per API version

Which issue(s) this PR fixes:

Fixes #132

Special notes for your reviewer:

This is on top of the disk API and the volume API PRs, we should merge those first.

Does this PR introduce a user-facing change?:

Added the v1beta2 SMB API, see #132 for the list of changes and the proto in client/api/smb/v1beta2

/cc @jingxu97 @ddebroy

[mauriciopoppe]

The results of the tests with commit ed27d34 are:

=== RUN   TestSmbAPIGroup
=== RUN   TestSmbAPIGroup/v1alpha1SmbTests
=== RUN   TestSmbAPIGroup/v1beta1SmbTests
=== RUN   TestSmbAPIGroup/v1beta2SmbTests
--- PASS: TestSmbAPIGroup (30.16s)
    --- PASS: TestSmbAPIGroup/v1alpha1SmbTests (12.23s)
    --- PASS: TestSmbAPIGroup/v1beta1SmbTests (8.96s)
    --- PASS: TestSmbAPIGroup/v1beta2SmbTests (8.96s)
PASS
ok      github.com/kubernetes-csi/csi-proxy/integrationtests    30.596s

/hold

This is on top of the Filesystem API changes, we should merge #143 first

[mauriciopoppe]

Test results with commit f826e46:

=== RUN   TestSmbAPIGroup
=== RUN   TestSmbAPIGroup/v1alpha1SmbTests
=== RUN   TestSmbAPIGroup/v1beta1SmbTests
=== RUN   TestSmbAPIGroup/v1beta2SmbTests
--- PASS: TestSmbAPIGroup (31.57s)
    --- PASS: TestSmbAPIGroup/v1alpha1SmbTests (13.73s)
    --- PASS: TestSmbAPIGroup/v1beta1SmbTests (8.87s)
    --- PASS: TestSmbAPIGroup/v1beta2SmbTests (8.96s)
PASS

[mauriciopoppe]

/unhold

[jingxu97]

/approve
/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jingxu97, mauriciopoppe

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