message: Use wai 0.2.0
diff: @@ -458,7 +458,7 @@ impl Init {
  Some(wapm_toml::Bindings::Wai(wapm_toml::WaiBindings {
  exports: None,
  imports: vec![e.path().to_path_buf()],
  - wai_version: semver::Version::parse("0.1.0").unwrap(),
  + wai_version: semver::Version::parse("0.2.0").unwrap(),
  }))
  } else {
  None
  