Callum Ryan

feat: SQL Catalog - namespaces

2

Carrying on from [PR #524 ](https://github.com/apache/iceberg-rust/pull/524), this is the implementation of the namespace functionality

feat: SQL Catalog - Tables

1

this is a WIP. Pulling tests in from @fqaiser94's original recommended test set as I go.

Lack of integration tests for SQL catalog implementation

3

Following on from https://github.com/apache/iceberg-rust/pull/610, https://github.com/apache/iceberg-rust/pull/534, https://github.com/apache/iceberg-rust/pull/524 and https://github.com/apache/iceberg-rust/pull/610#pullrequestreview-2335528590 from @liurenjie1024. The current test suite only runs against SQLite, for the catalog implementation to be robustly tested this should be extended...