CHILD WELFARE — adoption — best interests — consent — notice — change of name — adoption plan — where child has established a stable relationship with the proposed adoptive parents — where identity of child’s birth father remains unconfirmed — whether adoption order should be made in favour of proposed adoptive parents — whether consent of birth mother and father should be dispensed with — whether requirement to give notice on the birth father should be dispensed with — whether proposed name change should be approved — whether proposed adoption plan should be approved and registered