Print -show-timings and -show-more-timings to os.stderr

[MaliusArth]

Issue:

It is not possible to use odin run with -show-timings or -show-more-timings for programs which generate output redirected into a file.

` odin run file_generator.odin -file -show-timings -show-more-timings > output.gen

In this example timings are printed into the output.gen file, changing the programs expected output.

Request:

Print -show-timings and -show-more-timings to os.stderr to solve this issue.

Also, since those timings are compilation diagnostics/statistics I would expect them to be printed to os.stderr like other diagnostics, anyways.