Update 'Class_Diagram'

Class_Diagram.md

@@ -300,14 +300,13 @@ package Model <<Frame>> #bada55 {
   interface IManager<T> $inprogress {
     +Add(toAdd: T): T
     +GetAll(): T[*]
+    +GetOneByName(name: string): T
     +Update(before: T, after: T): T
     +Delete(toDelete: T)
   }
   
   package Dice #fdb {
   
-    
-  
     class DieManager $todo {
       /+Dice: IEnumerable<(name: string, IEnumerable<AbstractDie>)>
       +GetOneByName(name: string): IEnumerable<AbstractDie>