Bluetooth remote timelapse for Ender 3

This is a remix of the very clever "Simplest Timelapse for Ender 3" by rahavc.

It utilizes a very inexpensive wireless camera remote control. An example is at https://www.amazon.com/dp/B088DWQC3N

I modified it to be able to insert the bluetooth device from the top, added a slot to create clearance for the power switch and tweaked the mounting hole to reuse the original factory hex screw. I have also added 2 trigger levers....one to press the Android button and one to press the iOS button and lengthened the trigger levers by 7mm to avoid hitting the hotend fan.

I reconfigured my Ender 3 for a bed width of 240mm because the hot end needs to travel to 236-238mm to press the trigger. As long as the SLICER "thinks" the bed is only 220mm, it won't PRINT beyond that.

Using the Cura post-processing script "Time Lapse", this works perfectly.