By Francois Murphy VIENNA (Reuters) – Indirect talks between Iran and the United States on salvaging Tehran’s 2015 nuclear deal with world powers resumed on Tuesday after a 10-day break, but envoys gave little away as to whether they were closer to resolving various thorny issues. Delegates say the talks have made limited progress since they resumed in November after a five-month hiatus prompted by the election of hardline Iranian President Ebrahim Raisi. Negotiations accelerated last month but a number of vital issues remain unresolved and Western powers say little time remains before Iran’s …