Prepare Gen2 abstract commands and operation tools for Jul. 2023 run

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

• Modification of test exposure function on Launcher. Prepare one exposure button per each sub-module. Dark/bias option for MCS and arm/camera/SM selection option for SpS.
• Incorporation of acquire_field command and AG tracking off/on on Launcher
• Implementation of a command option to SetupField for controling the Cobra convergence torelance.
• Default setting of the AG fit parameter. For acquire_field, Ra. Dec. is the employed parameter while InsRot is also employed for auto guiding.
• Giving a visit number to a focusing sequence so that images from that appears on Obslog
• Organization of command versions.