MAINT Clean up images

doc/source/img/add_proc.png

doc/source/img/avail_sites_example.png

doc/source/img/data_structures.png

doc/source/img/data_structures.svg

doc/source/img/del_proc.png

doc/source/img/export_procedure.png

doc/source/img/kmcos_logo.png

doc/source/img/kmcos_logo.svg

doc/source/img/kmcos_structure.pdf

doc/source/img/kmcos_structure.png

doc/source/img/kmcos_structure.svg

doc/source/img/kmcos_workflows.png

doc/source/img/kmcos_workflows.svg

doc/source/img/kmos3_structure.png

doc/source/img/logos.svg

doc/source/img/screenshots/screenshot_view_ruo2.png

doc/source/img/write_proclist.png

doc/source/topic_guides/GithubGuideKmcos.pptx

doc/source/topic_guides/kmos3_speed.rst