go.mod, cmd/tailscaled, ipn/localapi, util/osdiag, util/winutil, util/winutil/authenticode: add Windows module list to OS-specific logs that are written upon bugreport

* We update wingoes to pick up new version information functionality
  (See pe/version.go in the https://github.com/dblohm7/wingoes repo);
* We move the existing LogSupportInfo code (including necessary syscall
  stubs) out of util/winutil into a new package, util/osdiag, and implement
  the public LogSupportInfo function may be implemented for other platforms
  as needed;
* We add a new reason argument to LogSupportInfo and wire that into
  localapi's bugreport implementation;
* We add module information to the Windows implementation of LogSupportInfo
  when reason indicates a bugreport. We enumerate all loaded modules in our
  process, and for each one we gather debug, authenticode signature, and
  version information.

Fixes #7802

Signed-off-by: Aaron Klotz <aaron@tailscale.com>

util/osdiag/osdiag.go

@@ -0,0 +1,23 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
+// Package osdiag provides loggers for OS-specific diagnostic information.
+package osdiag
+
+import "tailscale.com/types/logger"
+
+// LogSupportInfoReason is an enumeration indicating the reason for logging
+// support info.
+type LogSupportInfoReason int
+
+const (
+	LogSupportInfoReasonStartup   LogSupportInfoReason = iota + 1 // tailscaled is starting up.
+	LogSupportInfoReasonBugReport                                 // a bugreport is in the process of being gathered.
+)
+
+// LogSupportInfo obtains OS-specific diagnostic information useful for
+// troubleshooting and support, and writes it to logf. The reason argument is
+// useful for governing the verbosity of this function's output.
+func LogSupportInfo(logf logger.Logf, reason LogSupportInfoReason) {
+	logSupportInfo(logf, reason)
+}