STORM-1436 FIXED Broken localization of "Contents" and "New Script" items in...

STORM-1436 FIXED Broken localization of "Contents" and "New Script" items in the Contents tab of Build Tools.

The bug happened when the translations contained non-ASCII characters.

Reason: Names of inventory items are limited to ASCII characters.
Fix: Leave names in English, localize them when displaying (on the fly).

The fix only affects object's inventory (i.e. not agent inventory).