add support for converting traditional hive tables to iceberg/delta/hudi

[djouallah]

Feature Request / Improvement

there are a lot of systems that produce parquet files only, it will be useful if xtable can convert those parquet to modern tables formats without rewriting data just by adding metadata continuously.

Delta do that already but it is a one off operation and can't accept new files

Are you willing to submit PR?

• [ ] Yes I am willing to submit a PR!

Code of Conduct

• [X] I agree to follow this project's Code of Conduct