[FR] (Add support for Mingda X and X2 series Printers)

[LuckyPuccio89]

Is your feature request related to a problem? Please describe.

Description
This Feature Request adds support For all Mingda X and X2 series Printer .

Are you looking for hardware support?

The Manufacturer decide to share with the mingda community their source code.
Here you can get it --https://github.com/stevekenney318/Mingda-X-Max-Pro.git --- For X series
https://github.com/stevekenney318/Mingda-X2-Pro2.git ---- For x2

--- This is the source code where you can explore their motherboard . the file you are looking is the langgo407ve_st pinout

Describe the feature you want

I was able to first build it but since i'm really noob in 3 weeks i managed to compile and see that the lcd doesn't work

The manufacturer used some homemade EXTENSIBLE_UI screen template that I was able to port for modern Marlin, but can definitely be investigated on their source code linked above.

i'm asking the community to support this printer and if you want i can manage to send a faulty motherboard for testing

this is the motherboard for the x2 https://www.3djake.it/mingda/mainboard-7

Thank you very much

Additional context

No response