Fix: Add application name to the generated workload entities

[dhiguero]

Description of your changes

This PR adds the application name to the generated workloads metadata labels (e.g., deployments, jobs, etc) that are created using the standard component types: webservice, worker, task, and cron-task.

The motivation behind this change is to maintain the old behavior of the previous kubernetes runtime where generated entities such as deployments or their resulting pods carried the labels of the parent application and component. That enabled using label selectors to get all pods of an application:

$ k get pods -l=app.oam.dev/name=first-vela-app-as-webservice
NAME                                         READY   STATUS    RESTARTS   AGE
express-server-webservice-54dcccbf4b-qcskl   1/1     Running   0          2m21s

The ability of retrieving pods by application name and/or component is quite convenient for both final users and intermediate tools that rely on that capability.

I have:

• Read and followed KubeVela's contribution process.
• Related Docs updated properly. In a new feature or configuration option, an update to the documentation is necessary.
• Run make reviewable to ensure this PR is ready for review.
• Added backport release-x.y labels to auto-backport this PR if necessary.

How has this code been tested

To test the changes, deploy the updated component definitions, and deploy example applications. For example:

Webservice application

apiVersion: core.oam.dev/v1beta1
kind: Application
metadata:
  name: first-vela-app-as-webservice
spec:
  components:
    - name: express-server-webservice
      type: webservice
      properties:
        image: crccheck/hello-world
        ports:
          - port: 8000
            expose: true

Next create the application and check that the associated pods can be retrieved by component (as before) and by application name.

$ kubectl create -f first-vela-app.webservice.yaml
application.core.oam.dev/first-vela-app-as-webservice created
$ kubectl get pods -l=app.oam.dev/name=first-vela-app-as-webservice
NAME                                         READY   STATUS    RESTARTS   AGE
express-server-webservice-54dcccbf4b-6wdnn   1/1     Running   0          38s
$ kubectl get pods -l=app.oam.dev/component=express-server-webservice
NAME                                         READY   STATUS    RESTARTS   AGE
express-server-webservice-54dcccbf4b-6wdnn   1/1     Running   0          91s

This tests were also executed for the other types of entities.

Special notes for your reviewer

[msftgits]

All CLA requirements met.

[codecov]

Codecov Report

Merging #3786 (90f79e8) into master (7f5b8ef) will increase coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #3786      +/-   ##
==========================================
+ Coverage   63.99%   64.03%   +0.03%     
==========================================
  Files         312      312              
  Lines       29530    29530              
==========================================
+ Hits        18898    18909      +11     
+ Misses       8183     8176       -7     
+ Partials     2449     2445       -4     

Flag	Coverage Δ
apiserver-unittests	35.29% <ø> (-0.01%)	⬇️
core-unittests	56.19% <ø> (+0.09%)	⬆️
e2e-multicluster-test	26.65% <ø> (-0.03%)	⬇️
e2e-rollout-tests	23.61% <ø> (-0.01%)	⬇️
e2etests	31.40% <ø> (+0.13%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/apiserver/sync/cr2ux.go	56.41% <0.00%> (-5.13%)	⬇️
...dev/v1alpha2/application/application_controller.go	83.03% <0.00%> (-1.82%)	⬇️
...ller/core.oam.dev/v1alpha2/application/revision.go	72.36% <0.00%> (-1.51%)	⬇️
pkg/addon/utils.go	72.00% <0.00%> (-1.00%)	⬇️
pkg/workflow/workflow.go	82.07% <0.00%> (+0.31%)	⬆️
pkg/apiserver/rest/usecase/workflow.go	62.89% <0.00%> (+0.73%)	⬆️
pkg/controller/utils/capability.go	80.30% <0.00%> (+0.88%)	⬆️
pkg/workflow/recorder/recorder.go	87.09% <0.00%> (+1.61%)	⬆️
...tepdefinition/workflowstepdefinition_controller.go	71.27% <0.00%> (+2.12%)	⬆️
...ponentdefinition/componentdefinition_controller.go	91.11% <0.00%> (+5.55%)	⬆️
... and 2 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 7f5b8ef...90f79e8. Read the comment docs.

[wonderflow]

thanks