HyperCube 3030 Version with 300x200 Bed

**UPDATES:**
**08.05.2018:** .stp file is updated. configuration.h file for Marlin 1.1.8 is added (suitable for my Z-Probe design).
**25.04.2018:** Case for 12864 controller is added. 4 of brass inserts (M3*5*5mm OD 5mm) are needed for assembly.
https://www.aliexpress.com/item/100PCS-M3-5-5mm-OD-5mm-Brass-Inserts-Double-Pass-Copper-Knurl-Nut-Embedded-Fastener/32822621373.html
**19.10.2017:** Added configuration.h and configuration.adv files for Marlin 1.1.6. I have configured the files for