feat: create SA in EKS based on aws.helmSa

[gazal-k]

• if jxRequirements.cluster.aws.helmSa is true: create SA with annotations to bind to the IAM Role with convention: arn:aws:iam::<accountId>:role/<clustername>-<namespace>-<saName>
• otherwise: don't create SA

fix jenkins-x-labs/issues#17

[gazal-k]

related to jenkins-x-labs/jenkins-x-versions#49 and has the same dependencies

[gazal-k]

looks like the CI on this is using go1.14 and I suppose that's why the build is failing

[ghost]

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[gazal-k]

/label work-in-progress

[gazal-k]

looks like this can't be merged yet. The USER-SUPPLIED VALUES: for jxl-boot chart doesn't have the whole jx-requirements.yaml. Only something like:

jxRequirements:
  bootConfigURL: https://github.com/org/environment-cluster-name-dev
  cluster:
    clusterName: cluster-name
    project: project
    provider: eks

[gazal-k]

I think I'll close this for now to avoid accidentally merging this