Support editing native Wi-Fi AP configurations

Support for repeater channel on Android 5 has been dropped because I am lazy.

mobile/src/main/java/be/mygod/vpnhotspot/util/Utils.kt

@@ -1,7 +1,9 @@
 package be.mygod.vpnhotspot.util
 
+import android.annotation.SuppressLint
 import android.content.*
 import android.os.Build
+import android.os.Parcel
 import android.text.Spannable
 import android.text.SpannableString
 import android.text.SpannableStringBuilder
@@ -15,7 +17,6 @@ import androidx.databinding.BindingAdapter
 import be.mygod.vpnhotspot.App.Companion.app
 import be.mygod.vpnhotspot.room.macToString
 import be.mygod.vpnhotspot.widget.SmartSnackbar
-import java.lang.RuntimeException
 import java.net.InetAddress
 import java.net.NetworkInterface
 import java.net.SocketException
@@ -32,6 +33,15 @@ fun Long.toPluralInt(): Int {
     return (this % 1000000000).toInt() + 1000000000
 }
 
+@SuppressLint("Recycle")
+fun <T> useParcel(block: (Parcel) -> T) = Parcel.obtain().run {
+    try {
+        block(this)
+    } finally {
+        recycle()
+    }
+}
+
 fun broadcastReceiver(receiver: (Context, Intent) -> Unit) = object : BroadcastReceiver() {
     override fun onReceive(context: Context, intent: Intent) = receiver(context, intent)
 }