CLI: Manage the status of storage working group openings and applications (lead)

[Lezek123]

After the commands to list openings and applications are implemented, we will need to add some commands to allow the lead to manage the current status of those ie.:

• working-groups:start-accepting-applications --group=storage OPENING_ID - handled via acceptWorkerApplications(OPENING_ID) api method.
• working-groups:start-reviewing-applications --group=storage OPENING_ID - handled via the api method beginWorkerApplicantReview(OPENING_ID).
• working-groups:terminate-application --group=storage APPLICATION_ID - handled via terminateWorkerApplication(APPLICATION_ID) api method.
• working-groups:fill-opening OPENING_ID - handled via fillWorkerOpening(OPENING_ID, APPLICATION_IDS, REWARD_POLICY). Since the input here is a little more complex it's probably best to handle it via propmts (ie. "Select succesfull applications", "Do you want to add a reward policy?" etc.)

[Lezek123]

Closed with #707