MM::CLocalMessages: Get internationalized texts from array variables

This is a very simple class that can get texts for internationalized defined in class variables.

The texts are stored in associative array variables of the class. For each supported idiom there is an array entry with the symbol of the idiom. That entry has another associative array with entries for each translated text.

The class can return the translated text given its identifier name and the currently selected idiom symbol specified by a class variable.