Floor stand

This is a remix of [gaellafond](https://www.thingiverse.com/gaellafond/about)'s excellent [Mini Floor Stands - Keep calm](https://www.thingiverse.com/thing:3462817). It's very very similar to his design (all credits for the OpenSCAD file go to him!), only changes are: * The arm locking mechanism is such that gravity will lock it. * I increased the font size for the word "and" and made it configurable, too. Now it prints better for me. * Hinges are a bit tighter by default (Works well for well calibrated printers) * Thickness is a bit reduced by default. * I added a few more logos to choose from. ***New:*** I added Beer and Gin logos, as requested by [CY357](https://www.thingiverse.com/CY357/about). If you like it, also check out my configurable text based creations, [multi-line label](https://www.thingiverse.com/thing:3559949), [gadget display stand](https://www.thingiverse.com/thing:3418876), [bunting banner](https://www.thingiverse.com/thing:3432803), [Fancy Nameplate](ht