gcode: Rename respond() to respond_raw()

Rename the method to make it more clear that it is a low-level call
that should be rarely used.

Also, change gcode_button.py, hall_filament_width_sensor.py, and
tsl1401cl_filament_width_sensor.py to use respond_info() instead of
respond_raw().

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

klippy/extras/bed_mesh.py

@@ -187,7 +187,8 @@ class BedMesh:
             self.gcode.respond_info("Bed has not been probed")
         else:
             self.bmc.print_probed_positions(self.gcode.respond_info)
-            self.z_mesh.print_mesh(self.gcode.respond, self.horizontal_move_z)
+            self.z_mesh.print_mesh(self.gcode.respond_raw,
+                                   self.horizontal_move_z)
     cmd_BED_MESH_MAP_help = "Serialize mesh and output to terminal"
     def cmd_BED_MESH_MAP(self, params):
         if self.z_mesh is not None:
@@ -196,8 +197,7 @@ class BedMesh:
                 'mesh_min': (params['min_x'], params['min_y']),
                 'mesh_max': (params['max_x'], params['max_y']),
                 'z_positions': self.bmc.probed_matrix}
-            self.gcode.respond(
-                "mesh_map_output " + json.dumps(outdict))
+            self.gcode.respond_raw("mesh_map_output " + json.dumps(outdict))
         else:
             self.gcode.respond_info("Bed has not been probed")
     cmd_BED_MESH_CLEAR_help = "Clear the Mesh so no z-adjusment is made"