Add ability to get groups from memberof attribute.

[r9odt]

Overview

In the case of using FreeIPA, the user has a set of memberOf attributes that contain the DNs of groups, sudo rules, and HBAC. The ability to use the memberof-dn combination in UserMatchers has been added to directly retrieve groups from the user entity without additional group queries. Additionally, memberOf values that do not have the suffix defined as BaseDN or do not start with the NameAttr ({NameAttr}=groupname,{BaseDN}) are discarded

What this PR does / why we need it

When ldap user like this

dn: uid=test,cn=users,cn=accounts,dc=example,dc=com
uid: test
displayName: Test User
gecos: Test User
loginShell: /bin/bash
memberOf: cn=ipausers,cn=groups,cn=accounts,dc=example,dc=com
memberOf: cn=admins,cn=groups,cn=accounts,dc=example,dc=com
memberOf: ipaUniqueID=UUIDPLACEHOLDER,cn=hbac,dc=example,dc=com
memberOf: ipaUniqueID=UUIDPLACEHOLDER,cn=sudorules,cn=sudo,dc=example,dc=com
memberOf: cn=wazuh-users,cn=groups,cn=accounts,dc=example,dc=com
memberOf: cn=dex-admins,cn=groups,cn=accounts,dc=example,dc=com
sn: User
givenName: Test
cn: Test User
mail: test@example.com

and use

groupSearch:
  baseDN: cn=groups,cn=accounts,dc=example,dc=com
  nameAttr: cn
  userMatchers:
    - userAttr: memberOf
      groupAttr: dn
      groupPrefix: dex # work only if userattr is 'memberOf' and groupAttr is dn

It allow to get groups of user from user.s entity. For this example expected groups: dex-admins
If we use standart functional, it returned no groups, because (i guess), ldapsearch cannot be performed with filter like (dn=ENTITYDN).
Also we can't use member properties of groups because nested groups are mapped the same as users and more queries need to be made

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