feat(error): Display for Error shows better info
feat(error): Display for Error shows better info

Displays the inner error for Error types with inner errors instead of
just displaying the description.

Closes #694

markuskobler/hyper,tshepang/hyper,markuskobler/hyper,tshepang/hyper,yazaddaruvala/hyper,hyperium/hyper,hannobraun/hyper,hannobraun/hyper,Twey/hyper,hyperium/hyper,yazaddaruvala/hyper,golddranks/hyper,tshepang/hyper,nickgonzales/hyper,markuskobler/hyper,Twey/hyper,hyperium/hyper,hannobraun/hyper,golddranks/hyper,Keats/hyper,Twey/hyper,nickgonzales/hyper,nickgonzales/hyper,Keats/hyper,golddranks/hyper,Keats/hyper