Parametric military decorations

A set of reasonably accurate reproductions of Prince Phillip's military decorations, other than that the center of each medal is replaced with an imported/included STL (I've included an Aperture Science logo from https://www.thingiverse.com/thing:20674 by [sicarius](https://www.thingiverse.com/sicarius/about) and a Bitcoin logo from https://www.thingiverse.com/thing:497827 by [vinnivanhood](https://www.thingiverse.com/vinnivanhood/about) as examples).

# Usage
## With included designs

``` sh
> openscad medals.scad -o medals.stl -D 'type=[0-5]' -D 'coin=[1-2]'
```
eg., to create a military cross medal styled after Prince Philip's [Croix de Guerre](https://en.wikipedia.org/wiki/Croix_de_Guerre_1939%E2%80%931945) & [Greek War Cross](https://en.wikipedia.org/wiki/War_Cross_(Greece)):
``` sh
> openscad medals.scad -o medals.stl -D 'type=5' -D 'coin=1'
```

## With your design
To use your own designs in the centre of the medals, create (or acquire) an STL centered on the origi