Use modern Lisp features and software ADC

[1zun4]

This pull request contains the following changes for VESC 6.05:

• Utilizes let functions and set, resulting in significantly reduced code.
• Reformatted the code for improved readability.
• Modifies the script to pass throttle and brake as ADC input, thanks to the timeout function in VESC 6.05 that addresses previous safety concerns.
• Detaches hardware ADC, and it is now possible to disable software ADC by changing the software-adc variable from 1 to 0.
• Disables ADC app when the display is turned off.
• Awaits resolution of GitHub issue #638 (https://github.com/vedderb/bldc/issues/638) to enable storing odometer data in the future.
• Enhances ADC functionality to better support features such as traction control, dual or multi-motor setups, and more.

Please review and merge the changes.

[jifferon]

Any updates on ADC flavor?