implement ApplyCommand and SetCurrentTool

src/Mod/Path/PathSimulator/App/PathSimPy.xml

@@ -39,6 +39,14 @@ Start a simulation process on a box shape stock with given resolution\n</UserDoc
         </UserDocu>
       </Documentation>
     </Methode>
+    <Methode Name="ApplyCommand" Keyword='true'>
+      <Documentation>
+        <UserDocu>
+          ApplyCommand(placement, command):\n
+          Apply a single path command on the stock starting from placement.\n
+        </UserDocu>
+      </Documentation>
+    </Methode>
     <Attribute Name="Tool" ReadOnly="true">
         <Documentation>
             <UserDocu>Return current simulation tool.</UserDocu>