reload
Unloads all current achievements from the sector and reloads them from files.
Achievement specs are loaded from the mod's magic_achievements.csv file, allowing mods to update/change achievements, and player progress is loaded from common.
If a mod has removed an achievement (or the player is no longer using the mod), the achievement will be loaded as an "unloaded" achievement and still shown using the spec saved in common.
This is fine to call multiple times, but it will reload achievements from files each time.
Parameters
is
Whether a save game is loaded. If true, calls onSaveGameLoaded on all achievements.