`setConsoleMode` should do nothing if the handle is not a terminal. The proposed change is [exactly what `golang.org/x/term/IsTerminal()` does on Windows](https://cs.opensource.google/go/x/term/+/6886f2df:term_windows.go).
[NO TESTS NEEDED]
Signed-off-by: Anton Tykhyy <atykhyy@gmail.com>
Windows terminal handling is different than darwin and linux. It needs to have the terminal mode set to enable virtual terminal processing. This allows colors and other things to work.
Signed-off-by: Brent Baude <bbaude@redhat.com>
