By Francois Murphy and Parisa Hafezi VIENNA (Reuters) – Talks on reviving the 2015 Iran nuclear deal appeared to near a climax with talk of an imminent ministerial meeting as a U.N. report on Thursday showed Iran is most of the way to amassing enough enriched uranium for one bomb if purified further. “We are close to a possible deal,” Jalina Porter, the U.S. State Department’s principal deputy spokesperson, told reporters but cautioned that unsolved issues remained and that time was of the essence given the pace of Iran’s nuclear advances. The International Atomic Energy Agency (IAEA) report s…