Deew

- added `summary_sections` to config
- parsing delay from filenames too

- fixed first metavar removal for argparse's `--input`
- fixed exception printing in threads
- use a Windows path by default under WSL
- temp path added to the summary
- better instructions on config error

- added additional instance clamping for Windows DEE (6),
it seems like you can't do more than 6 even on a 16 thread cpu

- fixed typo in help

- changed default DRC to `music_light`, which is closer to the missing
`none` preset: https://forum.doom9.org/showpost.php?p=1972689&postcount=136
- fixed DRC option not being applied for stereo TrueHD encodes
- colorized argparse's help a little bit
- renamed `-t`/`--threads` to `-in`/`--instances` to be more accurate,
since one DEE instance can use 2 threads. see `-h` for more info

- specified xml encoding as `utf-8`, this fixes errors with weird characters
- fixed xml's `os.remove`