Write data table headers using column descriptor names not display names

[bryceatmoderne]

What's changed?

CsvDataTableStore#createBucketWriter was building data table headers using ColumnDescriptor.displayName not ColumnDescriptor.name which regresses previous behaviour.

What's your motivation?

Data tables written by Moderne's CLI were using a mix of data table names and displayNames.

Anything in particular you'd like reviewers to focus on?

No.

Anyone you would like to review specifically?

@jkschneider

Have you considered any alternatives or workarounds?

No.

Any additional context

No.

Checklist

• I've added unit tests to cover both positive and negative cases
• I've read and applied the recipe conventions and best practices
• I've used the IntelliJ IDEA auto-formatter on affected files