Add "Datadog" API

[thedracle]

Format: OpenAPI 3.0
Official: YES
Url: https://raw.githubusercontent.com/DataDog/datadog-api-client-python/refs/heads/master/.generator/schemas/v2/openapi.yaml
Name: Datadog
Category: developer_tools
Logo: https://static.datadoghq.com/static/v/35.68185865/js/../../../c/b453f815/asset-b453f8153cec1d17.svg