message: [vcpkg] Fix bug with missing dependencies introduced in
  When a package dependency was not found (has no source control file),
  install would exit with "Value was null" when trying to install its default
  features, as the dependency would be marked erroneously as found in this
  case.
diff: @@ -454,6 +454,7 @@ namespace vcpkg::Dependencies
  return res;
  }
  }
  + }
  // "core" is always an implicit default feature. In case we did not add it as
  // a dependency above (e.g. no default features), add it here.
  @@ -462,7 +463,6 @@ namespace vcpkg::Dependencies
  {
  return res;
  }
  - }
  return MarkPlusResult::SUCCESS;
  }
  