[CSL-1635] Default to 'node-db' in 'allocateNodeResources' when db path is not specified
[CSL-1635] Default to 'node-db' in 'allocateNodeResources' when db path is not specified

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