Federal officials promised on Friday to quickly create new policies to govern a promising field of stem cell research that is now in limbo because of an abrupt suspension of funding by the Obama administration. While offering no guarantee of renewed support, “the intent is to move forward,” said Carrie D. Wolinetz, associate director for science policy at the National Institutes of Health, at a workshop to review the state of the research, which strives to grow human organs in animals, called “chimeras,” after the hybrid creatures in Greek mythology.