feat: Introduce option to delete enrollment requests that are denied/revoked

[srieteja]

Closes #628

- What I did

• Introduce an option to allow deletion of enrollment requests (for denied/revoked enrollments only)

- How I did it

• Introduced 'delete' as an option in the at_activate argParser
• Introduced a delete-command parser which considers enrollmentId mandatory
• Introduce a new method deleteDeniedEnrollment which sends a delete request to the server and parses the server response.

- How to verify it

• Manual testing has been done.
• To test the changes, send an enrollment request then deny/approve+revoke it. Then run at_activate with the delete option which requires the atsign and enrollmentId. The enrollment should be deleted.

[gkc]

@srieteja @sitaram-kalluri Is this blocked by something?

[srieteja]

@srieteja @sitaram-kalluri Is this blocked by something?

I was waiting for the server-side changes to be released. Server-side changes were released by @sitaram-kalluri last week. I will test this again and get it ready for review over the coming weekend.

[gkc]

@srieteja You should stay focused on the C impl of at_activate.
@sitaram-kalluri can you pick this up please?

[sitaram-kalluri]

@srieteja You should stay focused on the C impl of at_activate.
@sitaram-kalluri can you pick this up please?

@gkc : Sure, I will pick this up.

[sitaram-kalluri]

Tested the deletion of enrollment and works as expected. Attaching the test log:

Deleting a revoked enrollment:

sitaram@sitaram-ThinkPad-E14:~/IdeaProjects/atsign/core/at_libraries/packages/at_onboarding_cli/bin$ dart activate_cli.dart revoke -a @alice🛠 -r vip.ve.atsign.zone -k ~/.atsign/keys/\@alice🛠_key.atKeys -i 19f571bb-25a7-409d-80cb-984f2bc882a6
Connecting ... Connected
Revoking enrollmentId 19f571bb-25a7-409d-80cb-984f2bc882a6
Server response: data:{"status":"revoked","enrollmentId":"19f571bb-25a7-409d-80cb-984f2bc882a6"}

sitaram@sitaram-ThinkPad-E14:~/IdeaProjects/atsign/core/at_libraries/packages/at_onboarding_cli/bin$ dart activate_cli.dart delete -a @alice🛠 -r vip.ve.atsign.zone -k ~/.atsign/keys/\@alice🛠_key.atKeys -i 19f571bb-25a7-409d-80cb-984f2bc882a6
Connecting ... Connected
Sending delete request
Server response: {"enrollmentId":"19f571bb-25a7-409d-80cb-984f2bc882a6","status":"deleted"}
sitaram@sitaram-ThinkPad-E14:~/IdeaProjects/atsign/core/at_libraries/packages/at_onboarding_cli/bin$ 

Deleting a denied enrollment:

sitaram@sitaram-ThinkPad-E14:~/IdeaProjects/atsign/core/at_libraries/packages/at_onboarding_cli/bin$ dart activate_cli.dart deny -a @alice🛠 -r vip.ve.atsign.zone -k ~/.atsign/keys/\@alice🛠_key.atKeys -i 6458cf5d-7a92-4404-a460-412a2f7ac08b
Connecting ... Connected
Denying enrollmentId 6458cf5d-7a92-4404-a460-412a2f7ac08b
Server response: data:{"status":"denied","enrollmentId":"6458cf5d-7a92-4404-a460-412a2f7ac08b"}

sitaram@sitaram-ThinkPad-E14:~/IdeaProjects/atsign/core/at_libraries/packages/at_onboarding_cli/bin$ dart activate_cli.dart delete -a @alice🛠 -r vip.ve.atsign.zone -k ~/.atsign/keys/\@alice🛠_key.atKeys -i 6458cf5d-7a92-4404-a460-412a2f7ac08b
Connecting ... Connected
Sending delete request
Server response: {"enrollmentId":"6458cf5d-7a92-4404-a460-412a2f7ac08b","status":"deleted"}

[gkc]

@sitaram-kalluri Let's also wait to release this until this bug fix has been released

[gkc]

@sitaram-kalluri I am going to merge this PR's changes into #682 since they are all related and I've made a number of changes in #682 related to the tests

[sitaram-kalluri]

@sitaram-kalluri I am going to merge this PR's changes into #682 since they are all related and I've made a number of changes in #682 related to the tests

Sure, @gkc

[gkc]

All of this PR's commits are now included in #682

[gkc]

Marked as draft since all of this PR's changes are now entirely included in #682