feat: add MerklePath

src/ZcashHaskell/Types.hs

@@ -722,6 +722,14 @@ instance FromJSON OrchardAction where
       a <- obj .: "spendAuthSig"
       pure $ OrchardAction n r c ephKey encText outText cval a
 
+data MerklePath = MerklePath
+  { mp_position :: !Int64
+  , mp_path :: ![HexString]
+  } deriving stock (Eq, Prelude.Show, GHC.Generic)
+    deriving anyclass (SOP.Generic, SOP.HasDatatypeInfo)
+    deriving anyclass (Data.Structured.Show)
+    deriving (BorshSize, ToBorsh, FromBorsh) via AsStruct MerklePath
+
 -- | Type for a Orchard note commitment tree
 newtype OrchardCommitmentTree = OrchardCommitmentTree
   { orchTree :: HexString