Make example 'simple' compile and run

[ghost]

The example did not run on a clean checkout, had to modify the crate-type and imports

[mcsherrylabs]

To save a lot of typing, you need to speak to @NicolasDP about this please.

[NicolasDP]

~it's been fixed on main this morning, it was an issue with cdynlib.~

which is what was done here in your change. I missed that out somehow.