Repealing Section 17-101 of The Philadelphia Code, entitled "Prequalification of Prospective Bidders for Contracts for Construction of Public Works," and enacting a new Section 17-101 of The Philadelphia Code, entitled "Prequalification of Responsible Contractors and Subcontractors for Public Works Contracts," providing for a prequalification and approval process for all prospective contractors and subcontractors seeking to perform public works contracts by requiring that they meet certain standards, in areas including, but not limited to, past project performance, past compliance with the l — Open Common Ground