allow find_items caller to sspecify the additional properties for an item shape; revert getting LastModifiedTime by default
allow find_items caller to sspecify the additional properties for an item shape; revert getting LastModifiedTime by default

WinRb/Viewpoint,Datacom/Viewpoint,bcherrington/Viewpoint,makandra/Viewpoint,Gerd82/Viewpoint,getoutreach/Viewpoint,Tsoondev/Viewpoint,albertdang/Viewpoint,gshutler/Viewpoint,Windermere/Viewpoint,Strauman/Viewpoint