Expose admin users

[gsanchietti]

A local user inside the users database can be converted to a local admin using the ns.users set-admin API.

To revoke the admin access, use the ns.users remove-admin API.

‌ Expose the function inside the User database page.

[gsanchietti]

Testing image: 8-23.05.3-ns.1.0.1-10-g168db29

[stephdl]

QA

use the test image go to the user vpn database create a user you can set it admin and disabled it if needed from the neDrawer or from the table (list of users)

the changes must be propagated or read from the CLI

echo '{ "database": "main"}' | /usr/libexec/rpcd/ns.users call list-users | jq

[cotosso]

It works as expected

root@NethSec:~# echo '{ "database": "main"}' |  /usr/libexec/rpcd/ns.users call list-users | jq
{
  "users": [
    {
      "local": true,
      "database": "main",
      "name": "davide",
      "password": "$6$856dcb83e49581c3$R8dtJEEeOOdtr9Bvx0W5P0ub3C8OYNyY.xGoRTTdq3cB8Ghub0c8hNx2tN1myWDvelRGXvKlELLWLvFYiBfdz1",
      "description": "davide",
      "admin": true,
      "id": "ns_0fdab136"
    }