Put all egui_demo_lib tests into their own files in their own folder
#2857
| Job | Run time |
|---|---|
| 3s | |
| 12s | |
| 15s |
egui_demo_lib tests into their own files in their own folder
#2857
| Job | Run time |
|---|---|
| 3s | |
| 12s | |
| 15s |