Add clientset to devconsole-api

[akashshinde]

This PR adds clientset to devconsole apis.

Code is generated using code-generator(https://github.com/kubernetes/code-generator)

Following resources are supported by this clientset

• GitSource
• GitSourceAnanlysis
• Component

Usage

Import

import (
     devconsoleclient "github.com/redhat-developer/devconsole-api/pkg/apis/client/clientset/versioned"
)

Initialise Client

client, _ := devconsoleclient.NewForConfig(config)

Get Resource

• List Components

client.Components(namespace).List(options)

• Get Component

client.Components(namespace).Get(name, options)

Why

This would helps us to have better code readability, we could refactor the code following way
Instead of (In controller)

 gitSource := &devconsoleapi.GitSource{}
 err := r.client.Get(context.TODO(), client.ObjectKey{
                         Namespace: cp.Namespace,
                         Name:      cp.Spec.GitSourceRef,
           }, gitSource)
  

we can have

gitSource, err := r.devconsoleClient.GitSources(cp.Namespace).Get(cp.Spec.GitSourceRef)

[sbose78]

Why are we adding it here, instead of using it directly at the controller repo - or whichever repo we need it in?

[akashshinde]

@sbose78 I feel clientset should get added to this repo, since clientset is tightly coupled with the crd apis, whereas there is not correlation between controller codebase and clientset

NOTE : If anyone wants to access clientset he should not require to import devconsole-operator

[sbose78]

Thanks, make sense. Could you add an example on how we should be consuming this ?

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[akashshinde]

@sbose78 I have added example under Why section