Imports a layer state from a specified drawing
            file
         
         (layerstate-importfromdb layerstatename filename)
 
         Arguments
         
- layerstatename
 
            - 
               
                  A string specifying the
                     name of the layer state to be imported.
                  
                
             - filename
 
            - 
               
                  A string specifying the
                     name of the file from which to import a layer state.
                  
                
             
         
         Return Values
         
         T if
            the import is successful; nil otherwise.
         
         Examples
         
         (layerstate-importfromdb "mylayerstate" "c:\\mydrawing.dwg")
T