fix(ledger): use transactions for leios endorser blocks (#1200)

Since Leios Endorser Blocks do not have the transaction contents in
their CBOR representation, we do not have a container for them. Add
`transactions` to allow us to store them in the block once resolved for
later retrieval, such as via the `Transactions()` func.

Signed-off-by: Chris Gianelloni <[email protected]>

Author: wolf31o2

ledger/leios/leios.go

@@ -64,6 +64,7 @@ type LeiosEndorserBlock struct {
 	cbor.DecodeStoreCbor
 	cbor.StructAsArray
 	hash         *common.Blake2b256
+	transactions []common.Transaction
 	TxReferences []common.TxReference
 }
 
@@ -153,9 +154,7 @@ func (b *LeiosEndorserBlock) PrevHash() common.Blake2b256 {
 }
 
 func (b *LeiosEndorserBlock) Transactions() []common.Transaction {
-	// TODO: convert TxReferences into []Transaction
-	// TxReferences []common.TxReference
-	return []common.Transaction{}
+	return b.transactions
 }
 
 func (b *LeiosEndorserBlock) Utxorpc() (*utxorpc.Block, error) {