feat: [Suggestion] Have an argocd-promise

[cmoulliard]

Suggestion

I would like to suggest to enhance the code of the client to support to initialize a project using an argocd-promise. As one of the building block of the architecture of Kratix is Argocd orr Flux as technology able to fetch resources and to sync them on the destination server, I think that it could be very valuable for people using argocd to leverage their Applications CR and to generate too for kratix such resources as an Application is finally a way to deploy a Helm chart, kustomized resources, etc

We could ask to the user to provide their flavor: helm, kustomize, static yaml resources; url of the repository, revision, path of the chart/resources and the values could be (as this is the case for helm) extracted from the helm values file to an openApiv3schema.

Remark: To avoid to have to deal with too much cases, I propose that we only support the kustomize's component - https://argo-cd.readthedocs.io/en/stable/user-guide/kustomize/#components. To be discussed of course

Command:

kratix init argocd-promise hello-quarkus --url "https://<helm-repository>/path --path --group <group> --kind <application>

Remarks: 
- default value of the git revision is: "main"
- default value for the path is "."

Result:

// Generated YAML 
---
apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
  name: <name-of-the-application-fromAPI>
  namespace: "By default this value should be equal to the argocd control plane namespace !"
spec:
  destination:
    namespace: <kratix-destination-namespace>
    server: <kratix-destination-kube-server>
  project: "By default we will use the default Argocd AppProject having full permissions"
  source:
    helm:
      valueFiles:
      - values.yaml - "That should be processed according to the pipeline using the from input.yaml converted to the values.yaml"
    path: <path-flag_or_default-to-dot>
    repoURL: <url-flag>
    targetRevision: <revision-flag_or_default-to-main>
  syncPolicy:
    automated:
      prune: true
      selfHeal: true
    retry:
      backoff:
        duration: 5s
        factor: 2
        maxDuration: 10m
    syncOptions:
    - CreateNamespace=true
    - RespectIgnoreDifferences=true
    - ApplyOutOfSyncOnly=true