@Deprecated
  public JibContainerBuilder addLayer(LayerConfiguration layerConfiguration) {
    return addFileEntriesLayer(layerConfiguration.toFileEntriesLayer());
  }
Adds a layer (defined by a {@link LayerConfiguration}).

@deprecated use {@link #addFileEntriesLayer(FileEntriesLayer)}.
@param layerConfiguration the {@link LayerConfiguration}
@return this
jib-core/src/main/java/com/google/cloud/tools/jib/api/JibContainerBuilder.java