update parser with a complete and generic version

README.md

api/InfrastructureTemplateController.py

icgparser/DomlParserUtilities.py

icgparser/ModelParser.py

icgparser/ModelParserOld.py

input_file_generated/ir.json

output_file_example/nginx_openstack/terraform/main.tf

output_files_generated/nginx_openstack/terraform/main.tf

template-location.properties

templates/terraform/open_stack/init.tpl

templates/terraform/open_stack/network.tpl

templates/terraform/open_stack/port_rule.tpl

templates/terraform/open_stack/virtual_machine.tpl