Remove DWO dependency

Related: Use devfile gem in spike branch (#392492 - closed)

Done:

• Generate deployment, service, ingress using devfile gem instead of generating devworkspace resource.
• Add ability to label/annotate the kubernetes resources generated.
• Calculate actual state. Earlier actual state was being calculated at agentk which should not have been the case.
• URL of the workspace is calculated while resources are generated instead of while getting the status of the resources.
• Inject webide components into the user devfile.
• Remove references to default namespace and ttyd editor.

TODO: Will be done in a followup MR

• Rename all variables from devworkspace to deployment
• Remove references to devworkspacerouting