v3.23

Release Notes:

• OLED/LCD: Fix missing folder name display row when inserting USB drive
• IMG.CFG: New examples for Roland, Sinclair QL, Kaypro
• IMG.CFG: Now supported in HxC-compat and indexed navigation modes
• IMG: Fix default 8-inch single-density data rate
• IMG, HFE: Support 255-cylinder image files