Adds to core plugins manager developped by Gallak.
Comments and schema numbering added.

Commit dashboard v0.1

issue #6134

issue #6071

issue #6071

issue #6071

issue #6071

issue #6054

Also fixed dashboard for non-admins

issue #5858

issue #6006

issue #5886

issue #5955

Basic fixes like identation

issue #5955

issue #5956

issue #5956

Also renamed files to match classes names

issue #5951

It may be better to add support for ogroups later.

issue #5940

Resolve "Samba groups are not showing in dashboard"

See merge request fusiondirectory/fd!289

(cherry picked from commit 8fe9e820)

e77fe541  fix(dashboard) Fix LDAP filter for Samba groups

issue #5135

issue #5831

Also do not search for expired users if posix is not installed

issue #5734

Now there is an ACL you can put in any ACL role to give access to the
 dashboard.
And all searches from the dashboard are checking ACL and returning info
 only on the data you are allowed to see.
Plugins providing a dashboard tab will have to be adapted as well

issue #5734

This will allow to sort dashboard tabs to have user related tabs first
 and systems related tabs after.

issue #5737

This avoids doing several ldap reads on the same node, by using
 ldap::cat and ldap::fetch instead of ldap::get_attribute.

close #5714

Sort users by expiration date and username in users dashboard

closes #5703

There are some left in datepicker.js because of a bug in the sniffer,
 I did not find a way to fix that yet.

issue #5690

Conflicts:
	include/class_templateHandling.inc
	include/simpleplugin/class_simplePlugin.inc