Add osGetInventoryDesc() as per http://opensimulator.org/mantis/view.php?id=5927

This allows one to get description data for a given prim inventory item.
Thanks MarcelEdward and GuduleLapointe!

CONTRIBUTORS.txt

@@ -107,6 +107,7 @@ what it is today.
 * M.Igarashi
 * maimedleech
 * Mana Janus
+* MarcelEdward
 * Mic Bowman
 * Michelle Argus
 * Michael Cortez (The Flotsam Project, http://osflotsam.org/)

OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs

@@ -2957,5 +2957,28 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
             return date.ToString("yyyy-MM-ddTHH:mm:ss.fffffffZ");
         }
+
+        /// <summary>
+        /// Get the description from an inventory item
+        /// </summary>
+        /// <param name="inventoryName"></param>
+        /// <returns>Item description</returns>  
+        public LSL_String osGetInventoryDesc(string item)
+        {
+            m_host.AddScriptLPS(1);
+
+            lock (m_host.TaskInventory)
+            {
+                foreach (KeyValuePair<UUID, TaskInventoryItem> inv in m_host.TaskInventory)
+                {
+                    if (inv.Value.Name == item)
+                    {
+                        return inv.Value.Description.ToString();
+                    }
+                }
+            }
+
+            return String.Empty;
+        }
     }
 }

OpenSim/Region/ScriptEngine/Shared/Api/Interface/IOSSL_Api.cs

@@ -229,5 +229,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Interfaces
         LSL_List osGetAvatarList();
 
         LSL_String osUnixTimeToTimestamp(long time);
+
+        LSL_String osGetInventoryDesc(string item);
     }
 }

OpenSim/Region/ScriptEngine/Shared/Api/Runtime/OSSL_Stub.cs

@@ -863,5 +863,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         {
             return m_OSSL_Functions.osUnixTimeToTimestamp(time);
         }
+
+        public LSL_String osGetInventoryDesc(string item)
+        {
+            return m_OSSL_Functions.osGetInventoryDesc(item);
+        }
     }
 }