CatalogUtils: consider introducing toLongForm(String) method

[0pdd]

The puzzle 694-35aab30a from #694 has to be resolved:

mystamps/src/main/java/ru/mystamps/web/controller/editor/ExpandCatalogNumbersEditor.java

Line 61 in 712c623

// @todo #694 CatalogUtils: consider introducing toLongForm(String) method

The puzzle was created by Slava Semushin on 08-Jul-18.