Adding test for and fixing daemonsets that should not run on Windows

[PatrickLang]

Will help prevent problems such as #3404

If applicable:

• documentation
• unit tests
• tested backward compatibility (ie. deploy with previous version, upgrade with this branch)

[PatrickLang]

/hold

Will be adding the fix for #3404 but I want to see the new test fail first.

[codecov]

Codecov Report

Merging #3407 into master will decrease coverage by 0.86%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #3407      +/-   ##
==========================================
- Coverage   55.37%   54.51%   -0.87%     
==========================================
  Files         104      104              
  Lines       15785    15787       +2     
==========================================
- Hits         8741     8606     -135     
- Misses       6325     6429     +104     
- Partials      719      752      +33

[PatrickLang]

Alright, we're failing as expected:

------------------------------
Azure Container Cluster using the Kubernetes Orchestrator with a windows agent pool 
  Should not have any unready or crashing pods right after deployment
  /go/src/github.com/Azure/acs-engine/test/e2e/kubernetes/kubernetes_test.go:780
STEP: Checking ready status of each pod in kube-system

$ kubectl get pods -n kube-system -o json
2018/07/03 22:24:50 Checking azure-cni-networkmonitor-t9g2r
2018/07/03 22:24:50 Checking azure-cni-networkmonitor-tg2wr

• Failure [0.623 seconds]
Azure Container Cluster using the Kubernetes Orchestrator
/go/src/github.com/Azure/acs-engine/test/e2e/kubernetes/kubernetes_test.go:58
  with a windows agent pool
  /go/src/github.com/Azure/acs-engine/test/e2e/kubernetes/kubernetes_test.go:740
    Should not have any unready or crashing pods right after deployment [It]
    /go/src/github.com/Azure/acs-engine/test/e2e/kubernetes/kubernetes_test.go:780

    Expected
        <bool>: false
    to be true

    /go/src/github.com/Azure/acs-engine/test/e2e/kubernetes/kubernetes_test.go:788
------------------------------

[PatrickLang]

Squashed and ready for review. The test case would fail on master - see the previous comment above. This should pass the new tests.

/hold cancel

[CecileRobertMichon]

/lgtm

[jackfrancis]

/lgtm

[acs-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: CecileRobertMichon, jackfrancis, PatrickLang

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