- Moved the Kasino shop models to their own file

- Added investments as a derivative of assets
- Added profile state flags which can retain basic states like IsSponsored
- Added profile state data using EF Core's JSON functionality so it should automatically serialize / deserialize the accompanying model for convenience (OnModelCreating code commented out due to the models not yet having a DbSet as I won't bake them in until KasinoShop is ready)

KfChatDotNetBot/Models/KasinoShopModels.cs

@@ -0,0 +1,9 @@
+namespace KfChatDotNetBot.Models;
+
+/// <summary>
+/// Holds state information for the kasino shop
+/// </summary>
+public class KasinoShopStateModel
+{
+    public required decimal DefaultHouseEdgeModifier { get; set; } = 0;
+}