Add deallocate method for ThreadLocalObjectAllocator

Author: Bethibande

core/src/main/java/de/bethibande/serial/allocation/ThreadLocalObjectAllocator.java

@@ -19,4 +19,8 @@ public T allocate() {
         return holder.get();
     }
 
+    public void deallocate() {
+        holder.remove();
+    }
+
 }