Discussion and possible action to amend Professional Services Contract Building Envelope and Roof Consulting Services with Raba Kistner Consultants, Inc., for the Webb County Justice Center Roof Project increasing the fee from Three Hundred Five Thousand Dollars to Four Hundred Three Thousand One Hundred Seventy Dollars as per the Phase II Design and Construction Fees set forth in the contract and to additionally authorize the reimbursement of Six Thousand Three Hundred Dollars for site survey work that was paid for by Raba Kistner and any matters incident thereto; authorizing the County Judge to sign all relevant documents.    [Account #1001-1130-001-432001 (Professional Services)]