move swift examples (#100)

* move swift examples

* swift workflow

* fixup

* rewirte gettingStarted

* add README for swift

* update fiat examples and addresss feedback

snippets/swift/BreezSDKExamples/Sources/SendSpontaneous.swift

@@ -0,0 +1,21 @@
+//
+//  SendSpontaneous.swift
+//
+//
+//  Created by ruben on 14/11/2023.
+//
+
+import Foundation
+import BreezSDK
+
+
+func sendSpontaneousPayment(sdk: BlockingBreezServices) -> SendPaymentResponse? {
+    // ANCHOR: send-spontaneous-payment
+    let response = try? sdk.sendSpontaneousPayment(
+        req: SendSpontaneousPaymentRequest(
+            nodeId: "...",
+            amountMsat: 3_000_000))
+    // ANCHOR_END: send-spontaneous-payment
+    return response
+    
+}