- Moved bed icon down when the machine is configured with two nozzles.

- The status screen uses the ST7920 character generator to greatly
  reduce SPI traffic and MCU load when updating the status screen.

- Has been tested with the RepRapDiscount Full Graphics Smart Controller
  but should work with any LCD that uses an ST7920 or fully compatible
  controller.

* VIKI2 & RE_ARM changes

1. Remove `DISABLED(SDSUPPORT)` from ST7565 in `ultralcd_impl_DOGM.h`. These LCDs share pins with the SD card and can run at the SD card rates.

2. Add SDSS definition to `pins_RAMPS_RE_ARM.h`.  Apparently the SDSS definition in `pins.h` is being processed before the one in `spi_pins.h` which resulted in not being able to read the SD card.

Fix #9530
Fix #9524

- avr-gcc is more strict than the Arduino IDE, it seems.

- The status screen uses the ST7920 character generator to greatly
  reduce SPI traffic and MCU load when updating the status screen.

- Has been tested with the RepRapDiscount Full Graphics Smart Controller
  but should work with any LCD that uses an ST7920 or fully compatible
  controller.

Based on #9610

FILAMENT_LCD_DISPLAY can work with SDSUPPORT

Based on #9590 by @studiodyne

From #9508 by @tnw513

From #9514 by @1138-4EB

Add compatibility with the original screen bord from Ultimaker 2 printer (UltiController v2.1 with the PG-2864ALBP I2C display)

Fix bug introduced in #9415

Based on #9373 by @nikkoura

Everywhere in menu items temperatures are "defined value" subtracted by 15.
In one place is subtracted by 5

A number of regressions were patched also. The UBL G29 P2 and P4 Press and Hold had stopped working. It is very possible this is broken in the bugfix_v1.1.x branch also.

The main purpose of the Pull Request is to get the 3-Point mesh tilting to use the LSF algorithm just like the grid based mesh tilt. This simplifies the logic and reduces the code size some what. But the real reason to do it is the 3-Point case can be solved exactly. And by feeding these numbers into the LSF algorithm it provides a way to check all that code for 'correctness'.

WORKS!