Update modules/post/multi/sap/smdagent_get_properties.rb
Update modules/auxiliary/admin/sap/cve_2020_6207_solman_rce.rb
Update documentation for auxiliary module cve_2020_6207_solman_rce.md
Update documentation for post module smdagent_get_properties.md
Move setup_xml_and_variables to `run` method in auxiliary module cve_2020_6207_solman_rce.rb
Delete list_dir, read_file, file_exist in post module smdagent_get_properties.rb