A plan to auction more than 100 artifacts salvaged from the wreckage of the Titanic — including personal belongings, currency, kitchen items and decor — is facing pushback from the U.S. government, according to newly unsealed court documents. RMS Titanic Inc., the company that owns exclusive salvage rights to the famous wreck in the North Atlantic, wants to sell the artifacts for the first time despite previous agreements to only display them at…