[Task]: Move Bulk Loader transformation plugin to plugin\database folder

[hansva]

What needs to happen?

Import: https://issues.apache.org/jira/browse/HOP-4577

Move bulk loader transformation plugin to database folder in order to share the jdbc JAR.

• Monetdb
• Snowflake
• Terra
• Doris

PostgreSql already done.

Issue Priority

Priority: 3

Issue Component

Component: Transforms

[hansva]

has been resolved with #2129