* updates device detector to latest version

* updates search engine definitions to latest version

* updates test

* submodule update

New visit dimension  "total interactions" and new action dimension "Interaction position"  and corresponding segments (#10911)

* adding new interaction segments
* add possibility to limit queries
* fix Piwik does not join correctly if 2 custom joins require each other
* added position to api output
* Contents plugin: Rename "Interaction" metric to "Content Interaction"

* Device detector 3.7.1

* Fix build

 + tests

Allow Segments to define multiple SQL columns if the segment value can be matched in any of those fields, and use to define two new segments: customVariableName & customVariableValue.

Refactor API.getSegmentsMetadata and Plugin\Segment so segments are all defined through Plugin\Segment class in dimensions & make sure AutoSuggestAPITest data providers do not use database.

refs #5940 put tests in correct folders, better testsuite names, some tests still fail and I cannot figure out why