Add "NewsDataHub API" API

[olgashi]

Format: openapi
Official: true
Url: https://github.com/newsdatahub/spec/blob/6e5f55ad859f11f2d50dcd907c7cd8e8d22d5e4a/openapi.yaml
Name: NewsDataHub API
Category: news
Logo: https://github.com/newsdatahub/logo/blob/b2be900cc467cf167cb1004eb029728c2396a5c6/NDH.png