Add support for Out Of Round txs (#359)

* [common] rework address encoding

* new address encoding

* replace offchain address by vtxo output key in DB

* merge migrations files into init one

* fix txbuilder fixtures

* fix transaction events

* OOR scheme

* fix conflicts

* [sdk] OOR

* update WASM wrappers

* revert renaming

* revert API changes

* update parser.go

* fix vtxosToTxsCovenantless

* add settled and spent in Utxo and Transaction

* Fixes (#5)

* Revert unneeded changes and rename claim to settle

* Revert changes to wasm and rename claim to settle

---------

Co-authored-by: Pietralberto Mazza <18440657+altafan@users.noreply.github.com>

pkg/client-sdk/types/types.go

@@ -73,7 +73,7 @@ type Transaction struct {
 	TransactionKey
 	Amount    uint64
 	Type      TxType
-	IsPending bool
+	Settled   bool
 	CreatedAt time.Time
 }
 
@@ -103,3 +103,19 @@ type TransactionEvent struct {
 	Tx    Transaction
 	Event EventType
 }
+
+type Utxo struct {
+	Txid        string
+	VOut        uint32
+	Amount      uint64
+	Asset       string // liquid only
+	Delay       uint
+	SpendableAt time.Time
+	CreatedAt   time.Time
+	Descriptor  string
+	Spent       bool
+}
+
+func (u *Utxo) Sequence() (uint32, error) {
+	return common.BIP68Sequence(u.Delay)
+}