Added script to profile vasp parser.

tests/profile_vasp.py

+from nomad.parsing import parser_dict
+from nomad import utils
+
+
+def run_parser(parser_name, mainfile):
+    parser = parser_dict[parser_name]
+    return parser.run(mainfile, logger=utils.get_logger(__name__))
+
+
+if __name__ == '__main__':
+    run_parser('parsers/vasp', '.dependencies/parsers/vasp/test/examples/xml/perovskite.xml')
+    run_parser('parsers/vasp', '.dependencies/parsers/vasp/test/examples/xml/perovskite.xml')
+    run_parser('parsers/vasp', '.dependencies/parsers/vasp/test/examples/xml/perovskite.xml')
+    run_parser('parsers/vasp', '.dependencies/parsers/vasp/test/examples/xml/perovskite.xml')
+    run_parser('parsers/vasp', '.dependencies/parsers/vasp/test/examples/xml/perovskite.xml')