fix: move utility function to own file

Author: mariobodemann

wrapper/src/main/java/io/yubicolabs/wwwwallet/credentials/Utillities.kt

@@ -0,0 +1,8 @@
+package io.yubicolabs.wwwwallet.credentials
+
+fun getClientOptions(
+    type: String,
+    challenge: String,
+    origin: String,
+) = "{\"type\":\"$type\",\"challenge\":\"$challenge\",\"origin\":\"https://$origin\"}"
+    .toByteArray()

wrapper/src/main/java/io/yubicolabs/wwwwallet/credentials/YubicoContainer.kt

@@ -501,10 +501,3 @@ private val JSONObject.rp: JSONObject?
 
 private val JSONObject.id: String?
     get() = getOrNull("id")
-
-fun getClientOptions(
-    type: String,
-    challenge: String,
-    origin: String,
-) = "{\"type\":\"$type\",\"challenge\":\"$challenge\",\"origin\":\"https://$origin\"}"
-    .toByteArray()