* Add Formbot Raptor2 board
* Add Raise3D Rumba board

- Makefiles require tabs (not spaces) before shell commands.
- Other indentation can either be space or tabs.

* Support new TMC library and 32-bit Archim board

- Added IS_MCU flag
  - When IS_MCU flag is 1, AVR compiler will be used
  - When IS_MCU flag is 0, ARM compiler will be used
- Added support for new TMC library
- Added support for a 32-bit Archim board, which could probably be used as a basis for other 32-bit boards.

http://reprap.org/wiki/EinsyRetro

* Fixed Makefile for Marlin 2.0 (#10255)

- Makefile now supports the new Marlin 2.0 directory hierarchy.
- RELOC_WORKAROUND is now automatically enabled based on avr-gcc version.

* Makefile support for U8glib and TMC2130Stepper

- Updated paths for oliver's U8glib 1.19.1
- Added option for teemuatlut's TMC2130Stepper 2.2.1

- Assign 243 (like EFB) as Ender-4/CR-8 board ID
- Add to `Makefile`
- Add to `pins.h`

Based on #8738
Addressing #8731

* Add Max7219 LED Matrix Debug Support

The Max7219 8x8 LED Matrix's are very helpful for debugging new code.
And for that matter, just trying to maximize printer settings without
causing stuttering.

The displays are very inexpensive (under $2.00 with shipping) and
provide a lot of help when trying to debug complicated code.

* Try to keep Makefile up to date.

Connected as described at http://printrbot.com/shop/led-strip/

Based on patch by Kelly Anderson <kelly@xilka.com> at
http://www.xilka.com/printrbot/marlin/1.1.4/20170707/

This was broken by 9af67e2446.

The file is required by the optional NOZZLE_PARK_FEATURE.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>

ArduinoAddons has been removed from Marlin, remove any references to it.
Replace HARDWARE_SRC and HARDWARE_DIR with its expanded equivalents.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>

The file is required by the optional PRINTCOUNTER feature.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>

Instantiation of the static singleton instance thermalManager in general
requires locking, but we know its safe to do without.

Add -fno-threadsafe-statics to avoid using locking primitives, which
result in linking errors:
	undefined reference to `__cxa_guard_acquire'
	undefined reference to `__cxa_guard_release'

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>

still a few bytes bigger than with arduino but nothing major

needed for constexpr