feat(playground): add SQL catalog support

[Shekharrajak]

Which issue does this PR close?

• Closes Support sql catalog in playground #1159

What changes are included in this PR?

Added SqlCatalogBuilder

Are these changes tested?

unit tests
and local testing :

 cat ~/.icebergrc 

  # SQLite (file-based - persistent)
  [[catalogs]]
  name = "local"
  type = "sql"
  [catalogs.config]
  uri = "sqlite:/tmp/iceberg-catalog.db"
  warehouse = "/tmp/iceberg-warehouse"

  Other database examples:

  # PostgreSQL
  [[catalogs]]
  name = "pg_catalog"
  type = "sql"
  [catalogs.config]
  uri = "postgresql://user:pass@localhost:5432/iceberg"
  warehouse = "s3://my-bucket/warehouse"

  # MySQL
  [[catalogs]]
  name = "mysql_catalog"
  type = "sql"
  [catalogs.config]
  uri = "mysql://user:pass@localhost:3306/iceberg"
  warehouse = "/data/warehouse"


# run playground : 

$ ./target/release/iceberg-playground

to build the release : 

cargo build -p iceberg-playground --release

create db : sqlite3 /tmp/iceberg-catalog.db "SELECT 1;" 

create config : 

  cat > ~/.icebergrc << 'EOF'
  [[catalogs]]
  name = "local"
  type = "sql"
  [catalogs.config]
  uri = "sqlite:/tmp/iceberg-catalog.db"
  warehouse = "/tmp/iceberg-warehouse"
  EOF

Run in playground: 

./target/release/iceberg-playground

[Shekharrajak]

We can merge this first #2121 and I will resolve conflicts for this code changes.