Overload handle-method findprop to hide it

In contrast to most other handle-methods, this cannot be done in
MaskedHandle as Motor uses findprop.

source/EV3.m

@@ -474,6 +474,12 @@ classdef EV3 < MaskedHandle
         end
     end
     
+    methods (Hidden)  % Overload handle-functions to hide them from the user
+        function findprop(varargin)
+             findprop@findprop(varargin{:});
+        end
+    end
+    
     methods (Access = private)  % Private brick functions that are wrapped by dependent params
         function bat = getBattery(ev3)
             if ~ev3.isConnected

source/Sensor.m

@@ -385,6 +385,12 @@ classdef Sensor < MaskedHandle
         end
     end
     
+    methods (Hidden)  % Overload handle-functions to hide them from the user
+        function findprop(varargin)
+             findprop@findprop(varargin{:});
+        end
+    end
+    
     methods (Access = private)  % Private brick functions that are wrapped by dependent params
         function setMode(sensor, mode)
             if ~sensor.connectedToBrick