Ender 3 V2 LCD Mount left

# Ender 3 V2 LCD Mount Left

I printed a left LCD mount from Thingiverse that had multiple makes and comments saying "perfect fit". It was a perfect waste of filament and time. So I replicated the original right side mount from scratch.

I also added a ribbon cable guide that can be attached using a t-nut.

## Features
* It does what the right side mount does, but on the left.

## Missing Features
* Adjustable angle: a smaller angle does not make any sense at all and with a larger angle the LCD will collide with the x axis end stop.
* Gap to the frame: there is none. Why would you introduce one at all?

## Print
* using the orientation of the `stl` and use supports touching the bed. 15% infill is fine.