4.0 oc rules in new file

[xingxingxia]

For #89 (comment)
Local test passed:
For:

  Scenario: Test oc version
    When I run the :version client command
    Then the step should succeed
    And evaluation of `@result[:props][:oc_version]` is stored in the :oc_version clipboard
    And evaluation of `@result[:props][:kubernetes_server_version]` is stored in the :k8s_s_version clipboard
    And I pry

Got:

    Then the step should succeed
    And evaluation of `@result[:props][:oc_version]` is stored in the :oc_version clipboard
    And evaluation of `@result[:props][:kubernetes_server_version]` is stored in the :k8s_s_version clipboard                                                  
[1] pry(#<BushSlicer::DefaultWorld>)> cb.oc_version
=> "4.0.17"
[2] pry(#<BushSlicer::DefaultWorld>)> cb.k8s_s_version
=> "1.12.4+b3e6ad4"

@akostadinov pls help check/merge, thanks!

[xingxingxia]

I copy from 3.x yaml, only changed rule for oc version.
@xiaocwan @yapei fyi, now your case OCP-19678 Check general info on console will pass:

    When I run the :version client command
    Then the step should succeed

[pruan-rht]

LGTM

[yapei]

@xingxingxia Thank you for the fix

[pruan-rht]

/lgtm

[openshift-ci-robot]

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