UPDATED Bambu Lab Start Gcode for 1.7.0.53

With the update of Bambu Studio to version 1.7.0.53 (Public Beta), there are some changes to the syntax of the gcodes command. I have updated the start code to work with the new calibration lines. The end code remains the same. This is only for Bambu Studio. As always, please do a test print to check. I am sure there is going to be a firmware update soon because not all settings are available in the new version of Bambu Studio until the printer gets a new firmware. Cube from thrutheframe