[CSL-1489] Consider single key distribution addresses in 'mkAllSecretsSimple'
[CSL-1489] Consider single key distribution addresses in 'mkAllSecretsSimple'

Will probably bu useful at some point.

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