consolidate interface and implementation classes

Oqtane.Server/Repository/Context/IDBContextDependencies.cs

@@ -0,0 +1,13 @@
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.Configuration;
+using Oqtane.Infrastructure;
+
+namespace Oqtane.Repository
+{
+    public interface IDBContextDependencies
+    {
+        ITenantManager TenantManager { get; }
+        IHttpContextAccessor Accessor { get; }
+        IConfigurationRoot Config { get; }
+    }
+}