Add table provider for ADBC drivers

[zeroshade]

What this PR includes:

• AdbcTableFactory
• ADBCPool
• Some tests (more needed, unit + integration)
• Example (under examples)
• CI
• Bulk insert capability

Example:

let mut driver = ManagedDriver::load_from_name(
        "duckdb", None, AdbcVersion::V110, LOAD_FLAG_DEFAULT, None).unwrap();

let db = driver.
    new_database_with_opts([
          (OptionDatabase::Uri, "core/examples/duckdb_example.db".into())]).unwrap();

let adbc_conn_pool = Arc::new(ADBCPool::new(db, None)
     .expect("unable to create ADBC Conn pool"));

let table_factory = AdbcTableFactory::new(adbc_conn_pool.clone());
let ctx = SessionContext::new();

ctx.register_table(
    "companies_v2",
    table_factory
        .table_provider(TableReference::bare("companies"))
        .await
        .expect("failed to register table provider"),
).expect("failed to register table");

let df = ctx
        .sql("SELECT * FROM datafusion.public.companies_v2")
        .await
        .expect("select failed");
    df.show().await.expect("show failed");

As I'm not particularly fluent in Rust yet, I'm sure there's lots of areas for improvement in my rust code and simplifications. I'd love feedback and tips/suggestions from anyone, thanks!