fixes https://github.com/piwik/piwik/issues/7184

Piwik is a free/libre analytics platform. Refs #4455 GNU Package requirement to use free/libre instead of open source

refs #4609

fixes #4609

Fixes #4367, remove version column and move version to name column and make version strings consistent in plugins admin.

It was confusing to have a coreViewDataTable and pluginViewDataTable class. In addition the coreViewDataTable did two things: Instance creation and managing all viewDataTables --> two new classes

renamed configureVisualization to beforeRender and trigger it at after filters are applied. makes it easier to understand that this hook is meant to force the value of some config properties. this change probably breaks some features, will fix it then

removed more magic, force visualization developers to define an ID: I do not like it when there are two ways to define an ID

adjusted some visualizations to the new viewdatatable structure, the platform is displaying some data again

added interface for dataTable to be able to define the expected type in a function, maybe it makes sense to add/remove some methods from the interface?

trying to use some hooks for visualization, properties are now handled in request/view data objects without any logic, not sure if it works, still an experiment, probably does not work for custom visualization properties