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/LnurlPay.swift

@@ -0,0 +1,26 @@
+//
+//  LnurlPay.swift
+//
+//
+//  Created by ruben on 14/11/2023.
+//
+
+import Foundation
+import BreezSDK
+
+func pay(sdk: BlockingBreezServices) -> LnUrlPayResult? {
+    // ANCHOR: lnurl-pay
+    // Endpoint can also be of the form:
+    // lnurlp://domain.com/lnurl-pay?key=val
+    // lnurl1dp68gurn8ghj7mr0vdskc6r0wd6z7mrww4excttsv9un7um9wdekjmmw84jxywf5x43rvv35xgmr2enrxanr2cfcvsmnwe3jxcukvde48qukgdec89snwde3vfjxvepjxpjnjvtpxd3kvdnxx5crxwpjvyunsephsz36jf
+    var response: LnUrlPayResult?
+    let lnurlPayUrl = "lightning@address.com"
+    if let inputType = try? parseInput(s: lnurlPayUrl) {
+        if case.lnUrlPay(let `data`) = inputType {
+            let amountMSat = data.minSendable
+            response = try? sdk.payLnurl(req: LnUrlPayRequest(data: data, amountMsat: amountMSat, comment: "comment"))
+        }
+    }
+    // ANCHOR_END: lnurl-pay
+    return response
+}