Use enumerations in EF models.

Cicm.Database/Migrations/20180806192514_UseExistingEnumerations.cs

@@ -0,0 +1,11 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+namespace Cicm.Database.Migrations
+{
+    public partial class UseExistingEnumerations : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder) { }
+
+        protected override void Down(MigrationBuilder migrationBuilder) { }
+    }
+}