ANSIfy output from invalid parameter handler, and write it to stderr

ANSIfy output from invalid parameter handler, and write it to stderr

The function, file and expression are very unlikely to contain anything
requiring UTF-16 output, and the output is less likely to interfere with
anything when written to stderr rather than stdout.

Note that the function doesn't currently do anything without hacking the
makefiles because we don't currently build with _DEBUG and the debug CRT.
I haven't changed that yet (other than locally) because there is actually
some output from it which causes a couple of tests to fail.