feat(user_groups): API client code to create, update and delete users and groups

[NSSPKrishna]

---

pk/NR-76861, is required by newrelic/terraform-provider-newrelic#2227 (pk/NR-76866) in terraform-provider-newrelic

---

Summary

This PR adds queries, mutations and associated code via Tutone to

Create, update and delete users

mutation {
  userManagementCreateUser
}

mutation {
  userManagementUpdateUser
}

mutation {
  userManagementDeleteUser
}

Create, update and delete groups

mutation {
  userManagementCreateGroup
}

mutation {
  userManagementUpdateGroup
}

mutation {
  userManagementDeleteGroup
}

Fetch an authentication domain by its ID (get)

{
  actor {
    organization {
      userManagement {
        authenticationDomains
      }
    }
  }
}

Linked Jira Tickets

https://new-relic.atlassian.net/browse/NR-76855 (Users and Groups)
https://new-relic.atlassian.net/browse/NR-76861 (Authentication Domains)

[CLAassistant]

All committers have signed the CLA.

[codecov-commenter]

Codecov Report

Attention: 111 lines in your changes are missing coverage. Please review.

Comparison is base (38b50be) 37.33% compared to head (920ba92) 37.51%.
Report is 3 commits behind head on main.

Files	Patch %	Lines
pkg/usermanagement/usermanagement_api_queries.go	0.00%	78 Missing ⚠️
pkg/usermanagement/usermanagement_api.go	68.57%	27 Missing and 6 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #981      +/-   ##
==========================================
+ Coverage   37.33%   37.51%   +0.17%     
==========================================
  Files          83       86       +3     
  Lines        5373     5566     +193     
==========================================
+ Hits         2006     2088      +82     
- Misses       3217     3322     +105     
- Partials      150      156       +6     

Flag	Coverage Δ
unit	37.51% <42.48%> (+0.17%)	⬆️

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[pranav-new-relic]

Important commit to refer to in future. Line 108
2c547c1

[pranav-new-relic]

Things to do -

• update the non-Tutone query to avoid querying users when groups are being used (we would only need groups and users in them for group management and user-group association)
• update failing tests

[pranav-new-relic]

Closing this PR, since this functionality has already been implemented (and the changes in this PR have been integrated elsewhere).