* Forint briefly firms through 100-day moving average * Bond yields pause after rise in Budapest, fall in Warsaw By Sandor Peto BUDAPEST, April 16 (Reuters) – The forint hit a 3-week high against the euro on Tuesday, rebounding from falls last week caused by data showing a jump in annual inflation in March. A recent surge in Hungarian government bond yields, partly driven by a rise in Bund yields, has made the papers more attractive – even though that rise stalled on Tuesday. “That (yield rise) may be helping the forint too,” one Budapest-based dealer said. At a weekly fx swap auction on Monday, the NBH continued to cut forint liquidity provided to banks, but the closely watched 3-month interbank BUBOR rate stayed