Added support for authentication codes for the VM service. (#30857)

* Added support for authentication codes for the VM service.

Previously, a valid web socket connection would use the following URI:

`ws://127.0.0.1/ws`

Now, by default, the VM service requires a connection to be made with a
URI similar to the following:

`ws://127.0.0.1:8181/Ug_U0QVsqFs=/ws`

where `Ug_U0QVsqFs` is an authentication code generated and shared by
the
service.

This behavior can be disabled with the `--disable-service-auth-codes`
flag.

packages/flutter_tools/lib/src/device.dart

diff --git a/packages/flutter_tools/lib/src/device.dart b/packages/flutter_tools/lib/src/device.dart
index 1ff9e38..29bb3e7 100644
--- a/packages/flutter_tools/lib/src/device.dart
+++ b/packages/flutter_tools/lib/src/device.dart
@@ -367,6 +367,7 @@
   DebuggingOptions.enabled(
     this.buildInfo, {
     this.startPaused = false,
+    this.disableServiceAuthCodes = false,
     this.enableSoftwareRendering = false,
     this.skiaDeterministicRendering = false,
     this.traceSkia = false,
@@ -381,6 +382,7 @@
     : debuggingEnabled = false,
       useTestFonts = false,
       startPaused = false,
+      disableServiceAuthCodes = false,
       enableSoftwareRendering = false,
       skiaDeterministicRendering = false,
       traceSkia = false,
@@ -393,6 +395,7 @@
 
   final BuildInfo buildInfo;
   final bool startPaused;
+  final bool disableServiceAuthCodes;
   final bool enableSoftwareRendering;
   final bool skiaDeterministicRendering;
   final bool traceSkia;