* add support for old missions API (aka "steps missions")
* config option to disable loading non SoD Data (used only for missions and achievements for now)
* make AuthenticateUser endpoint compatible with games that use e-mail as login
* add api keys for lands
* add GetGameCurrency endpoint
* allow create empty stores and add store "8" (empty)
---------
Co-authored-by: Robert Paciorek <robert@opcode.eu.org>
rework achievements system:
- support for Achievements page in journal
- register achievement tasks in database to avoid duplicate rewards and to register progress (achievement levels)
- better achievement tasks xml database (for multiple games)
- support for older games SetUserAchievementTask (V1)
- add some missed achievement IDs
- move achievement data to Resources/achievements/
additionally:
- add mmo zones for MaM and some additional mmo zones for EMD
- move missions Resources into Resources/missions/
- split SoD/MaM missions into separte files
- move rank data to Resources/ranks/
- cleanup sodoff.csproj
SQLite database schema changes:
```
CREATE TABLE "AchievementTaskState" (
"VikingId" INTEGER NOT NULL,
"TaskId" INTEGER NOT NULL,
"Points" INTEGER NOT NULL,
CONSTRAINT "PK_AchievementTaskState" PRIMARY KEY("TaskId","VikingId"),
CONSTRAINT "FK_AchievementTaskState_Vikings_VikingId" FOREIGN KEY("VikingId") REFERENCES "Vikings"("Id") ON DELETE CASCADE
);
```
