Major cleanup of comments/spacing

[classicrocker883]

Description

Most important take away from this:

• runout.h spacing in one section need fixing
• src/feature files
• src/module files
• HAL/DUE/usb files
• sd/usb_flashdrive files

The majority of changes to src/[module+feature] adds missing header to these files.
example:

/**
 * feature/ammeter.h
 */

as well as:

• Tweak spacing on comments
• Capitalize where needed
• Add parenthesis around units (i.e. (mm))

---

Other Major changes

Spacing and Cleanup HAL/DUE/usb + sd/usb_flashdrive files
for example:

• /* => /**
• #endif /* [insert] */ => #endif // [insert]
• TO-DO/to-do => TODO:

Benefits

Updates the files to be similar like the rest.
Spacing.
Readability, and update some sentences make better sense.

Configurations

Related Issues

other files in src/module could use header with their filename added to them.