* Apply #pragma once in headers
* Adjust some thermistors formatting
* Misc cleanup and formatting

- A pullup on the INT pin is required when the pin is level-active

- Remove `print_job_timer.stop()` from `disable_all_heaters`
- Call `print_job_timer.stop()` for relevant `disable_all_heaters()`.
- Split up `kill()` for watchdog interrupt safety

- Fix an error in the return value of `sd_mmc_spi_read_capacity` which was causing the host OS to read beyond the last sector in the card.
- Clean up the USB flashdrive code and add better debugging.

Co-Authored-By: akunt

Better encapsulation and considerably reduce stepper jitter

Co-Authored-By: ejtagle <ejtagle@hotmail.com>

Fix #10330

- Watchdog reset during SD Card initialization.
- Move `DebugMonitor` to `DebugMonitor_Due.cpp`.
- Since the watchdog is enabled on boot do extra resets during init.
- Have `thermalManager` do watchdog reset before its ISR starts to prevent reset.
- Ensure that timers are stopped before reprogramming them to address tone issues.
- Improve SAM3XE reset when reflashed through the native port.

In answer to #10001

Add an option to retrieve the currently open file name (long filename if possible).

Thanks Chuck Hellebuyck.

* SD Status auto-report feature
Feature Request #9751

Based on https://github.com/MarlinFirmware/Marlin/issues/8746#issuecomment-368471901 by @benlye

If last file in directory has short filename and is preceded by a deleted long file name. SD menu will wrongly report long deleted file name as last entry

This will save some program memory with no speed lose

It seems that some SD cards don't support CRC_ON_OFF command. This fix will permit to use also these cards but leaving CRC check active on the system