Netcup client

Client for the netcup DNS API. It's not related to the netcup GmbH.

Prerequisites

• Netcup account with at least one domain
• Api-key and api-password generated via netcup account management tool (CCP)

Getting started

```rust let customerno = 4711; let apikey = "apikey"; let apipassword = "api_password";

// login
let client = NetcupClient::new(api_key, customer_no);
let client = client.login(api_password).await?;

// do your things here
let records = client.get_dns_records("example.tld").await?;
...

// logout
client.logout().await?;

```