* Update levelAsset creation so it can be flagged to be creating a subScene preemptively, improving workflow when creating a SubScene level asset 'in place' via the inspector.

* Fixed issue of creating new SubScene using the full level template instead of a blank level file
* Fixed subScene inspector field handling so clicking the create new will mark the 'in place' created level asset as a subscene appropriately
* Changed up persistenceManager logic when parsing objects out - especially with specialty fields - to use Strings instead of const char* to simplify memory juggling and improve stability
* Rolled back specialty array field outputs for decal roads and convex shapes to have the field names in the output again
* Added sanity check for MeshRoad's when writing out via specialty array field to ensure there are profile nodes before trying to write any
* Added sanity check to avoid pointlessly writing out meshroad and river position field into subScene file as it could cause a transform double-up and cause them to move when loading from a subscene

Engine/source/environment/meshRoad.cpp

@@ -1197,7 +1197,7 @@ const char* MeshRoad::getSpecialFieldOut(StringTableEntry fieldName, const U32&
 
       return StringTable->insert(buffer);
    }
-   else if (fieldName == StringTable->insert("ProfileNode"))
+   else if (fieldName == StringTable->insert("ProfileNode") && mSideProfile.mNodes.size())
    {
       Point3F nodePos = mSideProfile.mNodes[index].getPosition();
       U8 smooth, mtrl;