@Override
  public void setExecutionMode(ExecutionMode executionMode) {
    this.executionMode = executionMode;
  }
Adds the given feature as implied by this feature.
The given feature must be within the same specification hierarchy as this feature.
If this feature is going to be executed, the given feature is also going to be executed,
even if for example a post discovery filter would have filtered out the given feature,
like IDEs and build tools do if a specific test or a pattern of tests is executed.

<p><b>NOTE:</b> This relationship does not imply any ordering constraint. According to configured
                run order and parallel execution settings the features can run in any order or even
                concurrently.

@param feature a feature that should be implied by this feature
spock-core/src/main/java/org/spockframework/runtime/model/FeatureInfo.java