Add VPN app scanner

app/src/main/java/io/nekohasekai/sfa/ktx/Wrappers.kt

@@ -2,6 +2,20 @@ package io.nekohasekai.sfa.ktx
 
 import io.nekohasekai.libbox.StringIterator
 
+fun Iterable<String>.toStringIterator(): StringIterator {
+    return object : StringIterator {
+        val iterator = iterator()
+
+        override fun hasNext(): Boolean {
+            return iterator.hasNext()
+        }
+
+        override fun next(): String {
+            return iterator.next()
+        }
+    }
+}
+
 fun StringIterator.toList(): List<String> {
     return mutableListOf<String>().apply {
         while (hasNext()) {