Added business database entity (+ bank account)

Server/Entities/Business.cs

@@ -0,0 +1,35 @@
+using reallife_gamemode.Model;
+using reallife_gamemode.Server.Util;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+
+namespace reallife_gamemode.Server.Entities
+{
+    public class Business : IBankAccountOwner
+    {
+        [Key]
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+        public int Id { get; set; }
+
+        public string Name { get; set; }
+
+        public IBankAccount GetBankAccount (DatabaseContext databaseContext = null)
+        {
+            if (databaseContext == null)
+            {
+                using (databaseContext = new DatabaseContext())
+                {
+                    return databaseContext.BusinessBankAccounts.FirstOrDefault(u => u.BusinessId == this.Id);
+                }
+            }
+            else
+            {
+                return databaseContext.BusinessBankAccounts.FirstOrDefault(u => u.BusinessId == this.Id);
+            }
+        }
+    }
+}