Fix ToPlutusData serializer for V3

This is intense, as we still want to preserve the serializer for V1 &
  V2, and I've tried as much as possible to avoid polluting the
  application layer with many enum types such as:

  ```
  pub enum TxOut {
    V1(TransactionOutput),
    V2(TransactionOutput),
    V3(TransactionOutput),
  }
  ```

  Those types make working with the script context cumbersome, and are
  only truly required to provide different serialisation strategies. So
  instead, we keep one top-level `TxInfo V1/V2/V3` type, and we ensure
  to pass serialization strategies as type wrappers.

  This way, the strategy propagates through the structure up until it's
  eliminated when it reaches the relevant types.

  All-in-all, this strikes a correct balance between maintainability and
  repetition; and it makes it possible to define _different but mostly
  identical_ encoders for the various versions.

  With it, I've been able to successfully encode a V3 script context and
  match it against one produced using the Haskell libraries. More to
  come.

examples/acceptance_tests/run-all-script-contexts

@@ -1,12 +1,14 @@
 #!/usr/bin/env bash
 
+AIKEN=${1:-"cargo run -r --quiet --"}
+
 TESTS=()
 for lang in $(ls script_context); do
   for interaction in $(find script_context/$lang/validators -type f); do
     title=$(basename $interaction)
     title="${title%.*}"
     cd script_context/$lang
-    ./test.sh $title &
+    ./test.sh $title "$AIKEN" &
     TESTS+=("$title,$lang,$!")
     cd - 1>/dev/null
   done

examples/acceptance_tests/script_context/v2/aiken.lock

@@ -13,4 +13,4 @@ requirements = []
 source = "github"
 
 [etags]
-"aiken-lang/stdlib@main" = [{ secs_since_epoch = 1723298787, nanos_since_epoch = 494542000 }, "5e58899446492a704d0927a43299139856bef746e697b55895ba34206fa28452"]
+"aiken-lang/stdlib@main" = [{ secs_since_epoch = 1723298816, nanos_since_epoch = 935691000 }, "5e58899446492a704d0927a43299139856bef746e697b55895ba34206fa28452"]

examples/acceptance_tests/script_context/v2/test.sh

@@ -12,6 +12,8 @@ if [ -z $TITLE ]; then
   exit 1
 fi
 
+AIKEN=${2:-"cargo run -r --quiet --"}
+
 if ! command -v jq &> /dev/null
 then
     echo "\033[1mjq\033[0m missing from system but required."
@@ -24,7 +26,7 @@ then
     exit 1
 fi
 
-cargo run -r --quiet -- build 2>/dev/null
+$AIKEN build 2>/dev/null
 if [ $? -ne 0 ]; then
   exit $?
 fi
@@ -39,4 +41,4 @@ cp ctx/$TITLE/inputs.cbor.template ctx/$TITLE/inputs.cbor
 sed "s/{{ VALIDATOR_HASH }}/$VALIDATOR_HASH/" ctx/$TITLE/outputs.cbor.template > ctx/$TITLE/outputs.cbor
 sed "s/{{ VALIDATOR }}/$VALIDATOR/" ctx/$TITLE/tx.cbor.template | sed "s/{{ VALIDATOR_HASH }}/$VALIDATOR_HASH/" > ctx/$TITLE/tx.cbor
 
-cargo run -r --quiet -- tx simulate 1>$TITLE.log 2>&1 ctx/$TITLE/tx.cbor ctx/$TITLE/inputs.cbor ctx/$TITLE/outputs.cbor
+$AIKEN tx simulate 1>$TITLE.log 2>&1 ctx/$TITLE/tx.cbor ctx/$TITLE/inputs.cbor ctx/$TITLE/outputs.cbor