Include game language in debug game report

[AMurkin]

Summary

SUMMARY: None

Purpose of change

Complements #38162
Report examples:

- OS: Linux
    - OS Version: Distributor ID: Ubuntu; Description: Ubuntu 18.04.4 LTS; Release: 18.04; Codename: bionic; 
- Game Version: 0.D-13211-g6d275e707d-dirty [64-bit]
- Graphics Version: Tiles
- Game Language: English [en]
- Mods loaded: [
    Dark Days Ahead [dda]
]

- OS: Linux
    - OS Version: Distributor ID: Ubuntu; Description: Ubuntu 18.04.4 LTS; Release: 18.04; Codename: bionic; 
- Game Version: 0.D-13211-g6d275e707d-dirty [64-bit]
- Graphics Version: Tiles
- Game Language: Русский [ru]
- Mods loaded: [
    Тёмные Дни Впереди [dda]
]

Describe the solution

Store the list of languages in the options_manager
Include language in debug game report

Testing

Successfully generated reports in English and Russian.