Mostly from the L6470-oriented PR

Currently, Pause of an SD-Memory card print does not work.    This has been verified to resolve the issue by multiple people.   

I understand more work needs to be done to resolve some of the concerns...

- Fix a bug in MAXxxxx thermocouple temp reporting.
- Add support for 3-wire HD44780.
- Add support for PCA9533 RGB driver.
- Add configuration examples for FlashForge CreatorPro.

RemRam needs to redefine a particular timer to work correctly. The HAL did foresee this possibility and checks if the timer was already defined for either the stepper or temperature timer.

Prior to this commit the header file for the timers couldn't see those definitions in the pin file, but this commit will fix this.

Tested on an actual hardware to verify. (It wouldn't boot without it.)

Co-Authored-By: Alain Martel <alain74martel@gmail.com>