Manpages of src:syrthes in Debian bullseye

• convert2syrthes4(1)
• syrthes-gui(1)
• syrthes-post(1)
• syrthes-pp(1)
• syrthes-ppfunc(1)
• syrthes4_create_case(1)
• syrthes4ensight(1)
• syrthes4med30(1)