code: public T addBundle(final String moduleName, final String slot, final byte[] newHash) {
          final ContentItem item = createBundleItem(moduleName, slot, newHash);
          addContentModification(createContentModification(item, ModificationType.ADD, NO_CONTENT));
          return returnThis();
      }
docs: Add a bundle.
  
  @param moduleName the module name
  @param slot the module slot
  @param newHash the new hash of the added content
  @return the builder