Add examples for adding extra TLVs to a spontaneous payment

snippets/swift/BreezSDKExamples/Package.resolved

@@ -5,8 +5,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/breez/breez-sdk-swift",
       "state" : {
-        "revision" : "74402afba8218ff84a0f32d1bc0d4ddc7698f576",
-        "version" : "0.2.10"
+        "revision" : "73c7bf88ce51471f4a6313aa583fa1a5394442f7",
+        "version" : "0.2.15"
       }
     },
     {

snippets/swift/BreezSDKExamples/Package.swift

@@ -8,7 +8,7 @@ let package = Package(
     platforms: [.macOS(.v12)],
     dependencies: [
         .package(url: "https://github.com/apple/swift-argument-parser", from: "1.2.3"),
-        .package(url: "https://github.com/breez/breez-sdk-swift", from:"0.2.10")
+        .package(url: "https://github.com/breez/breez-sdk-swift", from:"0.2.15")
     ],
     targets: [
         // Targets are the basic building blocks of a package, defining a module or a test suite.

snippets/swift/BreezSDKExamples/Sources/SendSpontaneous.swift

@@ -16,6 +16,17 @@ func sendSpontaneousPayment(sdk: BlockingBreezServices) -> SendPaymentResponse?
             nodeId: "...",
             amountMsat: 3_000_000))
     // ANCHOR_END: send-spontaneous-payment
-    return response
-    
+    return response  
+}
+
+func sendSpontaneousPaymentWithTlvs(sdk: BlockingBreezServices) -> SendPaymentResponse? {
+    // ANCHOR: send-spontaneous-payment-with-tlvs
+    let extraTlvs = [TlvEntry(fieldNumber: 34_349_334, value: Array("Hello world!".utf8))]
+    let response = try? sdk.sendSpontaneousPayment(
+        req: SendSpontaneousPaymentRequest(
+            nodeId: "...",
+            amountMsat: 3_000_000,
+            extraTlvs: extraTlvs))
+    // ANCHOR_END: send-spontaneous-payment-with-tlvs
+    return response
 }