Interface comments and refactoring

LuminousSales/Business/Business/Interfaces/IController.cs

@@ -6,6 +6,9 @@ using System.Text;
 
 namespace Business.Business.UserManagment
 {
+    /// <summary>
+    /// Controller interface.
+    /// </summary>
     interface IController<T>
     {
         ICollection<T> GetAll();

LuminousSales/Business/Business/Interfaces/IReadOnlyController.cs

@@ -4,6 +4,9 @@ using System.Text;
 
 namespace Business.Business.Interfaces
 {
+    /// <summary>
+    /// Interface used only for read-only Controllers such as RoleController
+    /// </summary>
     interface IReadOnlyController<T>
     {
         ICollection<T> GetAll();

LuminousSales/Business/Business/Interfaces/ISalesController.cs

@@ -4,6 +4,9 @@ using System.Text;
 
 namespace Business.Business.Sales
 {
+    /// <summary>
+    /// Interface used for Sale Controllers such as DealController and StockController
+    /// </summary>
     interface ISalesController<T>
     {
         ICollection<T> GetAll();