Better support for translation

[Jeremi360]

So now the only why it is to for translation using RDS is to use build-in Godot Rempas tool and remaping each rkscript to its other langue version, like on screenshot bellow - which is a very bad soluction.

I propose to use godot build in tr() function this works with godot build in translation form .csv file.
So then it can works like this in RakuScript:

dialog_with_translation:
    dev tr[welcome_in_my_game]
    player.name = ? tr[player_name_question]
    
    menu translated_menu:
      tr[choice_01]
      tr[choice_02]

What do you think @theludovyc ?