Prepare Gen2 abstract commands and operation tools for Oct. and Dec. 2023 runs

Development and upgrade of the Gen2 commands and other operation tools for engineering observation in Oct. 2023. This issue includes

• Organization and clean-up of the skeleton files in a scope of command set for science operations.
• Cobra raster scan command update
• Implementation of telescope raster sequence using PFS.SHUTTERS.STATE which represents the spectrograph shutter status.
• Put the auto-guide convergence threshold into command argument of telescope raster scan.