- Mesh upload support

- LLMesh asset decoding and encoding (inc. LLPhysicsConvex, LLSkin, LLSubMesh)
- Query inventory folder by type
- onSelectedObject event
- fetchInventoryItem command
- Fix packing/unpacking of object shape
- Time sync with SimulatorViewerTimeMessage
- Changed several classes to a .from style rather than setting up in the constructor (exception friendly)
- Whole bunch of other improvements
- Object building

lib/classes/InventoryItem.ts

@@ -5,7 +5,7 @@ import {AssetType, InventoryItemFlags} from '..';
 
 export class InventoryItem
 {
-    assetID: UUID = UUID.zero();;
+    assetID: UUID = UUID.zero();
     inventoryType: InventoryType;
     name: string;
     salePrice: number;
@@ -39,4 +39,30 @@ export class InventoryItem
         group: UUID.zero(),
         groupOwned: false
     };
-}
+
+    getCRC(): number
+    {
+        let crc = 0;
+        crc += this.assetID.CRC();
+        crc += this.parentID.CRC();
+        crc += this.itemID.CRC();
+        crc += this.permissions.creator.CRC();
+        crc += this.permissions.owner.CRC();
+        crc += this.permissions.group.CRC();
+        crc += this.permissions.ownerMask;
+        crc += this.permissions.nextOwnerMask;
+        crc += this.permissions.everyoneMask;
+        crc += this.permissions.groupMask;
+        crc += this.flags;
+        crc += this.inventoryType;
+        crc += this.type;
+        crc += Math.round(this.created.getTime() / 1000);
+        crc += this.salePrice;
+        crc += this.saleType * 0x07073096;
+        while (crc > 4294967295)
+        {
+            crc -= 4294967295;
+        }
+        return crc;
+    }
+}