NetcdfFiles should use its own logger

[rschmunk]

Trying to figure out why I was not getting log messages from NetcdfFiles and found it was using a different class's logger.

PR Checklist

• [ ] Link to any issues that the PR addresses
• [ ] Add labels
• [ ] Open as a draft PR until ready for review
• [ ] Make sure GitHub tests pass
• [ ] Mark PR as "Ready for Review"

[tdrwenski]

I will ignore that failing test while I investigate it-- I just saw it on my PR yesterday as well, I'm sure it's not related to your changes

[rschmunk]

I wasn't paying a lot of attention, @tdrwenski, but it looked like Github was simply timing out while running tests?

Anyhow, thanks @haileyajohnson for commiting.