Establishment of Paternity; Creating a presumption of a legal father; authorizing certain persons to rebut such presumption by filing a petition to determine paternity; requiring the court to hold an evidentiary hearing on the petition; requiring an evidentiary hearing, at which certain experts may testify, if an objection to the test results is filed; authorizing the court to approve, grant, or modify a parenting plan, even if the child is not physically present in the state, etc.