[CSL-1475] Add sanityCheckDB in rollbackBlocksUnsafe
[CSL-1475] Add sanityCheckDB in rollbackBlocksUnsafe

input-output-hk/cardano-sl,input-output-hk/cardano-sl,input-output-hk/pos-haskell-prototype,input-output-hk/cardano-sl,input-output-hk/pos-haskell-prototype,input-output-hk/pos-haskell-prototype,input-output-hk/cardano-sl