deck: ability to automatically list and create new workspaces

[mheap]

Related to the workspace support in Konnect

[Prashansa-K]

We can begin working on this once Konnect APIs are available in dev.

[shivaygupta-dotcom]

@mheap While developing and testing for this, I have figured out multiple unknowns which I am handling with understanding code, because of that this might take some more time to conclude.

Few unknowns:

1. Koko team has introduce a new endpoint for the entities which belong to workspaces, which is not the case in On-prem, so we need to handle both of them separately and consciously.
2. We got a new separate endpoint for the workspace related operations, which is also not the case with on-prem, so here also we need to handle it.
3. https://konghq.atlassian.net/browse/KOKO-3141?focusedCommentId=199959.
4. https://konghq.atlassian.net/browse/KOKO-3141?focusedCommentId=200594

[shivaygupta-dotcom]

@mheap I have made changes for this and tested flow locally, things are looking fine. But I can not raise final PR as of now, as apart from routes there is no other entities available for workspace Konnect flow. Also schema validate endpoint is not working for workspaces, so cant test validate command discussion happening here
I am currently working on integration test as of now, facing few issues solving and moving forward.