Alabama lawmakers on Wednesday passed legislation to shield in vitro fertilization providers from civil and criminal liability, capping off their scramble to allow the fertility treatment after a State Supreme Court ruling found that frozen embryos should be considered children.But it was unclear whether the protections would be enough for the state’s major fertility clinics to restart treatments. Doctors at one clinic said they were ready to begin again as early as the end of the week, while another clinic said it was not assured about the scope of protections and would wait for…