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/gcode_button.py

@@ -26,7 +26,7 @@ class GCodeButton:
     cmd_QUERY_BUTTON_help = "Report on the state of a button"
 
     def cmd_QUERY_BUTTON(self, params):
-        self.gcode.respond(self.name + ": " + self.get_status()['state'])
+        self.gcode.respond_info(self.name + ": " + self.get_status()['state'])
 
     def button_callback(self, eventtime, state):
         self.last_state = state