support for LightInject

This should add support for [LightInject](https://github.com/seesharper/LightInject).

I'm a little unsure if the 'service-per-test'-scope is done right. I'm just using the build in `PerScopeLifetime` implementation. It would probably be better to make a `PerTestLifetime`, but I'm not sure on how...

Maybe the creator of LightInject, @seesharper can have a look...? :grinning: