Speech Bubble (Customizable) remixed

A simple OpenSCAD program that creates a Speech bubble with a hole in the back to place a magnet in.
You can customize it !

Remix from https://www.thingiverse.com/thing:3457772

Correct a little bug: hole for the magnet.

Add more configuration variables

- `text_message="Customize Text!!"` The text
- `text_height=3` text z height
- `text_font_size=10` text font size
- `text_font="Bauhaus 93:style=Regular"`
- `bubble_width=120` bubble x size
- `bubble_length=40` bubble y size
- `bubble_height=4` bubble z height: height without text, border and bottom
- `bottom_height=2` bottom z height
- `border_thickness=4` border thickness
- `border_height=2` border z height
- `arrow_on_right_side=true` side of the "arrow" of the bubble. false means left
- `magnet_height=2.2` magnet z height. set to 0 for no magnet
- `magnet_diameter=31.5` magnet diameter

total height of the bubble = bubble_height + bottom_height + max(border_height, text_height)