Models: Add Entities/ folder

Elwig/Models/Entities/ClientParam.cs

@@ -0,0 +1,13 @@
+using Microsoft.EntityFrameworkCore;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Elwig.Models.Entities {
+    [Table("client_parameter"), PrimaryKey("Param")]
+    public class ClientParam {
+        [Column("param")]
+        public string Param { get; set; }
+
+        [Column("value")]
+        public string? Value { get; set; }
+    }
+}