Issue 49640 - Errors about PBKDF2 password storage plugin at server startup
Bug description: Schema check errors are logged in the error log at start up.
It happens because of the missing attributes that are required by
nsslapdPlugin objectclass. Also we add the Password Storage Schemes
two times: in config.c and in fedse.c.
Fix description: Remove PBKDF2_SHA256 from slapd_bootstrap_config
because setup_internal_backends will happen shortly after (during main.c).
Another part of the fix - add nsslapd-pluginId, nsslapd-pluginVersion,
nsslapd-pluginVendor, and nsslapd-pluginDescription attributes to
fedse.c. The values don't matter because it will be rewritten shortly
after from pwd_storage_scheme_init functions (still during the startup).
https://pagure.io/389-ds-base/issue/49640
Reviewed by: mreynolds (Thanks!)