FW-update für X/M32 auf 4.03

[tombulli]

4.03 (2020-10-06):
New features:
- variable scrolling speed for spectrograph
- Library AES50
- DP48 remote support for stereo link & talkback messages
- improved transmission of DP48 messages through stageboxes and hubs
Improvements:
- Channel
- bring pan back to center when unlinking (if +-100)
- X-Live-Card:
- show warning when SD card is close to maximum capacity (10min / 1min remaining)
- showing protected SD card state
- better backup progress bar
- showing naming prompt when exporting a scene to USB
- better support when importing a CustomBootState as a scene
- CustomBootState can now be auto-loaded without a confirm dialog (append _NoPopUp to the filename)
- hold and scroll on snippets/safes
- added name prompt when exporting to USB
Bug fixes:
- HA gain control not updating digital trim when using User-Banks
- Fixed long Session-Name display
- Fixed show import/export popup text redrawing
- checking User-Blocks param safe and scene safe when loading an old scene