[TASK] Creating a queue instance should be more flexible

[timohund]

In solrfal a custom queue is used by using the hook:

$GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['solr']['postProcessIndexQueueInitialization']

This works fine, to trigger the queuing but is not enough to provide correct counting values or operate on the correct tables.

I would propose the following:

Introduce a "QueueResolver" that returns the queue for a indexingConfigurationName, by default the current "Queue". This QueueResolver provides a hook to have the possibility to return an own queue instance for a specific indexingConfigurationName.

[irnnr]

Not sure yet, might be an issue with how solrfal implements things. Let's discuss that on Skype.