fix: add UDP Standard LB rule to enable outbound access

[jackfrancis]

Reason for Change:

Azure Standard Load Balancers do not grant outbound access by default to backend VMs by default. This PR adds a UDP LB rule to the Standard LB spec to enable UDP outbound internet access on master VMs behind a Standard LB.

Additionally, added a UDP svc spec to enable UDP outbound for nodes.

Fixes #1099
Fixes #1125

Issue Fixed:

Requirements:

• uses conventional commit messages
• includes documentation
• adds unit tests
• tested upgrade from previous version

Notes:

[CecileRobertMichon]

should this be a fix: ?

[codecov]

Codecov Report

Merging #1155 into master will increase coverage by 0.01%.
The diff coverage is 68.75%.

@@            Coverage Diff             @@
##           master    #1155      +/-   ##
==========================================
+ Coverage   74.87%   74.88%   +0.01%     
==========================================
  Files         131      131              
  Lines       18428    18517      +89     
==========================================
+ Hits        13798    13867      +69     
- Misses       3837     3857      +20     
  Partials      793      793

[jackfrancis]

@ritazh can you kindly do a functional review? In a nutshell, in order to enable outbound UDP on masters + nodes in a standard LB-enabled cluster, that cluster will have the requirement of 4 external IP addresses, one each for UDP and TCP per LB (one LB for masters one LB for nodes).

I've confirmed that this PR fulfills the requirement of enabling TCP and UDP outbound (in particular, the obvious symptom this fixes is to enable ntp time sync on masters and nodes).

[ritazh]

lgtm

[CecileRobertMichon]

/lgtm

[acs-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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