Create CRUD endpoints for Organizations users

[elraphty]

Create endpoints for:

• Add organization users
• List organization users
• Update organization user
• Delete Organization user

[zp6]

I have submitted a PR to address this bounty: #2785

Please review when you get a chance. Thank you!

[caydyan]

Submitted PR: https://github.com/stakwork/sphinx-tribes/pull/2800\n\nImplemented the missing workspace user update endpoint for the organization/workspace user CRUD flow.\n\nValidation run:\n- go test ./routes -run TestWorkspaceRoutes -count=1\n- go test ./handlers -run TestUpdateWorkspaceUser -count=0\n- go test ./... -count=0\n- Runtime handler test requires the documented local Postgres test DB on localhost:5532; it was not available in my environment.\n\nBTC wallet: bc1qev5ant33v5y89qqjvcf4mh9hlax5svqf5xd7gc