Add a DB init service when there is not database.

Back/skydiveLogs-api.Business/Interface/IInitDbService.cs

@@ -0,0 +1,9 @@
+using System.Collections.Generic;
+
+namespace skydiveLogs_api.Business.Interface
+{
+    public interface IInitDbService
+    {
+        public void GenerateDb();
+    }
+}