Package structure

Different directory structure for the package, based on repository-forms/ezplatform-solr-search-engine

InfoCollector

"infocollector" is in use in legacy. Rename SystemInfoCollector to something else.
SystemInfoCollector is okay, as long as we use the full name, and not InfoCollector.

Services/parameters

Rename support_tools.info_collector.registry to support_tools.system_info.collector_registry
and in general, support_tools.info_collector to support_tools.system_info
Taken care of in https://github.com/ezsystems/ez-support-tools/pull/12