Support de Clarinette/Trompette pliable - Foldable clarinet/trumpet stand - V2.0

Clarinet and/or trumpet stand updated from https://www.thingiverse.com/thing:6792237

Major improvement:
Stability -> From 3 to 4 legs
Humidity -> Trumpet pavillon was likely to keep humidity. Spiral groove added to reduce this effect
No more feetings -> The screw is now a printed part rather than a onshelf M6 screw

Print the "pied" and "pied-tige" with 4 contour walls minimum