In t2listing, added parse_table_header_AUTOUGH2() and parse_table_header_TOUGH2() methods, and added regexp logic to detect start of table- for the case of TOUGH2-MP EOS5 which has no space between the top header and element table
Added is_results_line(), skip_to_results_line() and table_expected_floats() methods to t2listing class, to refine detection of start of results tables