[CDEC-326] Add generators for EncShare, DecShare, and WithHash
[CDEC-326] Add generators for EncShare, DecShare, and WithHash

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