FIX load extra fields langs in list view

[lvessiller-opendsi]

FIX load extra fields langs in list view
When you add an extra field with lang file (example : "mymodule@mymodule") and set "MyModuleExtrafield1" for translate key, this extra field is not translated in view list.
However, this extra field is translated in create and modify forms.

[eldy]

Having IO by a disk file read, in a method whose goal is to init an array in memory is a little bit hurting me and seems to introduce overload. Because translation should be requested later when we need to use the translation key and it should be done by the "include" files that manage extra fields. I do not experience this trouble of lang not loaded in list.
Do you have an example of list that is concerned by this bug ?.

[lvessiller-opendsi]

@eldy
For example : if you create your own module "Alfa3a" and you add an extra field "Alfa3aContactGender" on contact list and set "alfa3a@alfa3a" in lang file. You create the lang file with translate key "Alfa3aContactGender". You see column in contact list but it's not translated.

[eldy]

Thanks. I pushed another way to fix

[lvessiller-opendsi]

@eldy
Ok, it fixes in column field of the list. However, you have the same problem in selected fields (multiSelectArrayWithCheckbox in form method).