Display ticket tree hierarchy with optional filtering

[Lisacho]

I put the ChildTicketTreeMacro on the home page Wiki of our Trac, so developers and product managers can see all the related requirements in one place.

Now I have the issue that all the rejected requirements that we never implemented and all the defects are also visible in the tree, and also tickets from previous versions.

It would be great if I also had the ability to filter the results of the tree hierarchy based on any combination of fields (custom or inbuilt such as version, type, status, owner, etc)