Provide simple example/test script

[phcerdan]

Thanks for the plugin @jglaser.
Could you please provide a simple test script to check if it is working as expected?

Sadly, I am not a hoomd expert user, and for the compilation of this plugin to work I had to modify some #include files in hoomd source files. Now it compiles, but not sure how to check if the installation is working as expected.

Thanks for your time.