Economic Development in Gaming Concentrated Counties; Designating the “Prospect Del Vista Infrastructure and Investment Act”; creating Prospect Del Vista, Inc., as a nonprofit corporation which is not a unit or entity of the state government; requiring Prospect Del Vista, Inc., to create and administer an investment fund for a certain purpose in a certain manner; requiring the Auditor General to annually audit the investment fund and Prospect Del Vista, Inc.; authorizing Prospect Del Vista, Inc., to make certain awards to certain projects or programs, etc.