Localization support

Localization support depends on various constants and structures being initialized correctly. On Windows and OS/2 this is done automatically: a widestring manager is installed by default which helps taking care of the current locale when performing various operations on strings. The various internationalization settings (date/time format, currency, language etc) are also initialized correctly on these platforms.

On unixes, the widestring support is in a separate unit: cwstring, which loads the various needed functions from the C library. It should be added manually to the uses clause of your program. No initialization settings are applied by this unit, these must be initialized separately for the moment.