Update UnifiedAddress to use named types for receivers

Reviewed-on: #23

src/ZcashHaskell/Types.hs

@@ -279,19 +279,19 @@ instance FromJSON ShieldedOutput where
 -- * Orchard
 -- | Type to represent a Unified Address
 data UnifiedAddress = UnifiedAddress
-  { ua_net :: ZcashNet
+  { ua_net :: !ZcashNet
-  , o_rec :: BS.ByteString
+  , o_rec :: !OrchardReceiver
-  , s_rec :: BS.ByteString
+  , s_rec :: !SaplingReceiver
-  , t_rec :: Maybe TransparentAddress
+  , t_rec :: !(Maybe TransparentAddress)
   } deriving (Prelude.Show, Eq, Read)
 
 -- | Helper type for marshalling UAs 
 data RawUA = RawUA
-  { raw_net :: Word8
+  { raw_net :: !Word8
-  , raw_o :: BS.ByteString
+  , raw_o :: !BS.ByteString
-  , raw_s :: BS.ByteString
+  , raw_s :: !BS.ByteString
-  , raw_t :: BS.ByteString
+  , raw_t :: !BS.ByteString
-  , raw_to :: BS.ByteString
+  , raw_to :: !BS.ByteString
   } deriving stock (Eq, Prelude.Show, GHC.Generic)
     deriving anyclass (SOP.Generic, SOP.HasDatatypeInfo)
     deriving anyclass (Data.Structured.Show)