Ender 5 IR camera mount

Slight modification of Shenkoe's design (https://www.thingiverse.com/thing:4729272):

- I added cut-outs on the back of the camera case for 14x14mm heat sinks (the IR leds are running quite hot otherwise)
- The original corner mount is colliding with the screws of the Ender 5 corner brackets, I re-designed it, so that it is fitting without having to change the original ender5 screws.

Otherwise just follow the instructions in Shenkoe's project.

In the gallery you can see the difference between the original part and the changes I made.

Black heatsinks may look better, but I had still silver ones laying around.