Merge branch 'feature/WTCH-97' into 'dev'

[WTCH-97] Add TxSignerFactory

Closes WTCH-97

See merge request waves-enterprise/java-sdk/we-node-client!13

we-node-client-http/we-node-client-feign-client/src/main/kotlin/com/wavesenterprise/sdk/node/client/feign/tx/FeignTxService.kt

@@ -29,7 +29,7 @@ class FeignTxService(
     override fun txInfo(txId: TxId): Optional<TxInfo> =
         weTxApiFeign.txInfo(txId.asBase58String()).map {
             TxInfo(
-                height = Height(requireNotNull(it.height) { "Height should be present when getting txInfo" }),
+                height = Height(checkNotNull(it.height) { "Height should be present when getting txInfo" }),
                 tx = it.toDomain()
             )
         }

we-tx-signer/we-tx-signer-node/src/main/kotlin/com/wavesenterprise/sdk/tx/signer/node/factory/TxServiceTxSignerFactory.kt

@@ -0,0 +1,17 @@
+package com.wavesenterprise.sdk.tx.signer.node.factory
+
+import com.wavesenterprise.sdk.node.domain.blocking.tx.TxService
+import com.wavesenterprise.sdk.tx.signer.TxSigner
+import com.wavesenterprise.sdk.tx.signer.node.TxServiceTxSigner
+import com.wavesenterprise.sdk.tx.signer.node.credentials.Credentials
+import com.wavesenterprise.sdk.tx.signer.node.credentials.DefaultSignCredentialsProvider
+
+class TxServiceTxSignerFactory(
+    private val txService: TxService,
+) {
+    fun withCredentials(credentials: Credentials): TxSigner =
+        TxServiceTxSigner(
+            txService = txService,
+            signCredentialsProvider = DefaultSignCredentialsProvider(credentials),
+        )
+}