add patient name and timestamp to every `.gdt` and `.wl` file when processing

[zdavatz]

1, The input file name is mostly epat.gdt

2. The output filename is always epat.wl
3. Like this the files are overwritten.
4. Add the patient name to the file name when putting the epat.gdt into the processed folder and add a timestamp after the patient name, saparated by a _.
5. Do the same for the .wl file.
6. So the file name would be Hans_Muster_11.09.2024_11.39.33.gdt and Hans_Muster_11.09.2024__11.39.44.wl