Unsolicited Proposals for Public-private Partnerships; Authorizing, rather than requiring, a responsible public entity to publish notice of an unsolicited proposal for a qualifying project in a specified manner and that other proposals for the same project will be accepted; authorizing a responsible public entity to proceed with an unsolicited proposal for a qualifying project without a public bidding process if the responsible public entity holds a public meeting that meets certain requirements and holds a subsequent public meeting at which it makes a certain determination; requiring the responsible public entity to consider certain factors; requiring the responsible public entity to publish a certain report in the Florida Administrative Register for a certain period of time in certain circumstances, etc.