By Laila Bassam and Timour Azhari BEIRUT (Reuters) – Lebanon has received letters from French and Luxembourg authorities asking for information relating to Lebanon Central Bank Chief Riad Salameh’s bank accounts and assets, two Lebanese judicial sources told Reuters. The sources did not elaborate. A spokesperson for Luxembourg’s judiciary confirmed to Reuters in November it had opened “a criminal case” in relation to Salameh and his companies and assets, declining to provide further information at the time. France, Switzerland, Liechtenstein and Lebanon are also probing Salameh’s personal weal…