add ldap-search command to occ

Conflicts:
	apps/user_ldap/appinfo/register_command.php

LDAP search filter creation changes:

1. do not prepend * wildcard to search terms. Will result in faster search, but
you don't find "foobar"  when looking for "bar"
2. advanced behaviour when search string contains a space and multiple search
attributes are present. The search string is split into single words. The
resulting filter requires that each word at least appears once in any search
attribute. This is supposed to return better results in big LDAPs.

trim search string before passing it on

to reassure that selected attributes still work, do not count all matching entries but limit it to 1 in order to make it faster

* otherwise it will always think it hits the limit and need another round to fetch additional results

Also explicitly format sub-id integers as unsigned, which is required for
32-bit systems.

support for primary groups

actually the problem is only known on AD, it is only needed to take care of their attributes

adjust to ADs special behaviour

this change was not intended

cache the SID value so it is not requested over and over again

theres only one, use singular

we are access

add tests for new Access methods

add tests for new Group methods

address scrutinizer findings, mostly doc

call ldap_explode_dn from ldap wrapper, enables tests without php5-ldap

PHP Doc

yo dawg, i heard you like backslashes … php doc fix

PHPDoc updated and typos fixed while reviewing

Port of  LDAP Wizard: get correct total no of users, groups and complete list of groups on big setups #9002

fix PHPdoc

Conflicts:
	apps/user_ldap/lib/connection.php

add method to count groups on LDAP

Conflicts:
	apps/user_ldap/lib/access.php

LDAP Wizard: count users and groups with the power of paged search

Conflicts:
	apps/user_ldap/lib/wizard.php

consolidate requirement check

fix PHPdoc

Conflicts:
	apps/user_ldap/lib/access.php

Wizard: get really all groups from LDAP by power of Paged Search

Conflicts:
	apps/user_ldap/lib/wizard.php

make all this work in an early configuration state in the wizard by marking  the config active and ignoring the validation state.

Conflicts:
	apps/user_ldap/lib/connection.php

simplify two methods a bit, because they are not used for group search anymore

Conflicts:
	apps/user_ldap/lib/wizard.php

remove unused vars; increase scrutinizer happiness

Conflicts:
	apps/user_ldap/lib/access.php

LDAP: put out fetching of user meta data into a fully tested class of its own and update them (mail, quota, etc.) directly after mapping. Fixes #7785 properly on master

* test case added to avoid adding them later

My IDE was so sad about this that it marked the whole file in red and yellow and forced me to fix this.

LDAP: cache display names immediately on retrieval, saves tens of unecessary queries to LDAP server in the share dialog for example

using scrutinizer patch

var count is assigned in the inner loop so it must be checked inside there to be properly used as part of the exit condition of the outer loop