Deadpool & Tiberius simple impl

Just chaining configs from tiberius and configs from pooling.

```rust use deadpool_tiberius;

[tokio::main]

async fn main() -> Result<()> { let pool = deadpooltiberius::Manager::new() .host("localhost") // default to localhost .port(1433) // default to 1433 .authentication(AuthMethod::sqlserver("username", "password")) .database("database1") .trustcert() .maxsize(10) .waittimeout(1.52) // in seconds, default to no timeout .createpool()?;

let conn = pool.get().await?;
let rows = conn.simple_query("SELECT 1");

} ```