[RFE#1763] feat: localize dialogs for extra locales

[miurahr]

Java runtime only supports 11 languages for standard dialogs such as Open, Save, and Color Chooser. This uses swing-extra-locales library to enhance these dialogs with translations in Russian, Ukrainian, Arabic and Catalan.

Pull request type

• Feature enhancement -> [enhancement]

Which ticket is resolved?

• Localize UI for genuine dialogs in various languages
• https://sourceforge.net/p/omegat/feature-requests/1763/

What does this PR change?

• Add dependency swing-extra-locales and initialize the library

Other information