Double filament sensor

Filament Sensor based on things [Craftbot filament sensor](https://www.thingiverse.com/thing:2537054) and [Filament sensor](https://www.thingiverse.com/thing:2563347). Thanks to them !

First of all, I didn't have any tangle problem yet with good filament spool. I just keep an eye on the ending spool... So boring, and we are always distracted at this critical moment.

Last week, an unexpected issue appeared... Filament wasn't perfectly round somewhere in the spool, I noticed oval 1,75 x 2.02mm width... This resulted with an half "air print" and filament stuck on the PTFE tube (PTFE tube from spool to direct extrudeur).

[Craftbot filament sensor](https://www.thingiverse.com/thing:2537054) show me the road but I had different end stop sensor in stock : [Example](https://www.aliexpress.com/item/MYLB-10-Pcs-AC-125V-1A-SPDT-1NO-1NC-Momentary-Long-Hinge-Lever-Micro-Switch/32745688469.html).
[Filament sensor](https://www.thingiverse.com/thing:2563347) gave me the first part.

I desi