View Results Tree: Provide ability to rotating content of File name based on size

@pmouawad ([Bug 64177](https://bz.apache.org/bugzilla//show_bug.cgi?id=64177&redirect=false)):
Let's say you use VRT for errors only with XML output to get as much detail as possible.

At high scale, if error rate increases highly, then you end up with a huge XML file.

It would be nice to be able to have a rotating output file (as log framework allow to do it).

Just logging the idea here.

OS: All