* Renamed some quests to better ones (Kill Camp -> Clear Barbarian Camp and Kill City State -> Conquer City State)
* Quests names are hardcoded in a enum class
* Quests.json translations automated
* City State quests
* Flag to log two civ ever been friends
* Utility functions in GameInfo
* Created Diplomacy Action for notifications
* Utility functions for map
* Can be specified a custom color for surroundWithCircle
* Translation placeholder utility
* Added Quest model
* Utility function: number of researched technologies
* Image atlas rebuilt
* Localization
* Updated DiplomaticFlags and added EverBeenFriends
Slightly reworked nextTurnFlags() for code clarity and introduced the new flag EverBeenFriends that is set as soon as two civilizations are at least friends. It never expires.
* Removed quests not implemented yet from json
