Get a localised text from a localisable property.
@param xmp the XMP packet
@param schema the schema
@param name the property name.
@param genericLang the generic language you may want as a fall back.
Can be NULL or empty.
@param specificLang the specific language you want. Can't be NULL or empty.
@param actualLang the actual language of the value. Can be NULL if
not wanted.
@param itemValue the localized value. Can be NULL if not wanted.
@param propBits the options flags describing the property. Can be NULL.
@return true if found, false otherwise.
Get a localised text from a localisable property. @param xmp the XMP packet @param schema the schema @param name the property name. @param genericLang the generic language you may want as a fall back. Can be NULL or empty. @param specificLang the specific language you want. Can't be NULL or empty. @param actualLang the actual language of the value. Can be NULL if not wanted. @param itemValue the localized value. Can be NULL if not wanted. @param propBits the options flags describing the property. Can be NULL. @return true if found, false otherwise.