Support for third party modules, improved error handling, standardardized enum naming, reorganized interface definitions, support for DB script upgrades, added Settings entity

Oqtane.Server/Repository/Interfaces/IModuleRepository.cs

@@ -0,0 +1,15 @@
+using System.Collections.Generic;
+using Oqtane.Models;
+
+namespace Oqtane.Repository
+{
+    public interface IModuleRepository
+    {
+        IEnumerable<Module> GetModules();
+        IEnumerable<Module> GetModules(int SiteId, string ModuleDefinitionName);
+        Module AddModule(Module Module);
+        Module UpdateModule(Module Module);
+        Module GetModule(int ModuleId);
+        void DeleteModule(int ModuleId);
+    }
+}