Improve "Invalid kernel binary format version" error logging to include expected and actual version

[jmagman]

When debugging the following error message, it would be nice if the log said what kernel binary format version it expected, and what it found instead.

[  +46 ms] [VERBOSE-2:shell.cc(93)] Dart Error: Can't load Kernel binary: Invalid kernel binary format version.
[        ] [VERBOSE-2:dart_isolate.cc(170)] Could not prepare isolate.
[        ] [VERBOSE-2:runtime_controller.cc(382)] Could not create root isolate.
[        ] [VERBOSE-2:shell.cc(571)] Could not launch engine with configuration.

sdk/runtime/vm/kernel_binary.cc

Lines 125 to 129 in da43433

	if ((formatVersion < kMinSupportedKernelFormatVersion) ||
	(formatVersion > kMaxSupportedKernelFormatVersion)) {
	if (error != nullptr) {
	*error = kKernelInvalidBinaryFormatVersion;
	}