Feature Request: Add timestamps to `--trace`

[Adrian Muresan]

I request that timestamps be added to the output when using `--trace` option.

There is a hack to added timestamps to every STDOUT of make

http://stackoverflow.com/questions/37623123/windows-batch-how-to-add-timestamp-while-redirecting-stdout-to-file

but that introduces overhead.

I think it would make sense to add this option to `--trace`.