1.0.0

It's basically the 0.5.0 version. The only noticeable change is that
the Wasmer runtime has been updated to version 2.0.

Added

• All examples are now tested as part of the test suite (#53 by @Hywan)

Changed

• The Ruby embedding has been updated to Wasmer 2.0, which is faster in many regards (#57 by @Hywan)