The ConverterLibrary contains all available Coverters, converting Strings.
General purpose data type converters are able to convert Strings into objects that are
usually as parameters when setters are called on javax.swing objects.
The Localizer class provides consumers with a simple localization tools: getString(key).
Locale and ResourceBundle need to be set to use it.
Since some setters accept comma separated lists of Strings, e.g.
XGridBagConstraints simple extends GridBagConstraints to
make bean style getters and setters available for all public fields in the GridBagConstraints class.