New Prototype Stage *Alpha* - Imagine That 3D - Titan - Helios, HCMaker7 variant

Testers needed. Feedback appreciated.

This is a Current Prototype testing phase of the new Helios shell replacement upgrade with improvements to cooling.

I will be adding an attachment to the cooling duct that feeds the hot end, I know it's not the most beautiful solution but I think it should do the job for now. Given the extrudes assembly changing it to anything but the stock is difficult as it forms the very housing for the extruder itself. i will look into including an improved drive