Have the File System Browser GUI display what GFileSystem class is being used to read the file system

[ryanmkurtz]

Discussed in #7438

^{Originally posted by nmggithub February 1, 2025}
I'm working on a GFileSystem class that overlaps with one that is built-in to Ghidra. Ghidra thankfully gives me the option when I select the option to open a file as a File System. However, the GUI then gives no further indication of my selection. A File Browser window using the built-in GFileSystem class looks basically identical to one using mine. The titlebar merely indicates the name of the file that was opened and the tool that it was opened from. GFileSystem does have a getName() method, is it possible to make this appear in the titlebar or elsewhere?