[Feature] add option to include solr definition in dockercompose

[RVanhuysseXenit]

Seeing as alfresco is often run with a solr, it would be practical to have an option to include a solr configuration in the project.
This could take the form of an extending dockercompose file that adds the solr service and some default settings to the alfresco service to configure it.

Considering this is part of deployment, I suggest not putting the option in the dependencies section, but as its own checkmark.

[tgeens]

Putting it somehow in the dependency section is the "easy way".

There is little to no infrastructure in place to add this as a custom property.