Add babel-loader logger

[JLHwung]

Please Read the CONTRIBUTING Guidelines
In particular the portion on Commit Message Formatting

Please check if the PR fulfills these requirements

• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Other... Please describe:

What is the current behavior? (You can also link to an open issue here)
babel-loader does not output very much debug logs

What is the new behavior?
When the webpack option stats.loggingDebug is set to includes babel-loader, the loader will now output detailed debug logs, which could help users trouble shooting common errors, such as insufficient cache folder permissions or debugging babel-loader overrides.

Does this PR introduce a breaking change?

• Yes
• No

If this PR contains a breaking change, please describe the following...

• Impact:
• Migration path for existing applications:
• Github Issue(s) this is regarding:

Other information:
This PR is based on #1033, I will rebase once that PR gets merged.

As this PR is for the 10.0 milestone, I will prepare a new readme PR that should be merged before we release 10.0.

[JLHwung]

Since this feature should help users providing more debug message when reporting babel-loader bugs. Do you think we should backport this feature to the 9.x? The stats.loggingDebug option has been available since webpack 4, so we could do that for the 8.x as well.

We can cut the 9.x branch from e449287.