Add Microsoft Bing as additional MT provider

[JoeyStk]

Motivation

We want more languages to be supported by machine translation. For that we want

Proposed Solution

Add Microsoft Bing as additional MT provider

Alternatives

User Story

As a municipality I want to use the cheaper option of MT for as many languages as possible.

Additional Context

This issue is part of our MT meta and should be implemented after this one.

Design Requirements

None, follow the existing design

[JoeyStk]

@laravoelk are there still plans at the moment to also include Microsoft Bing as machine translation provider?

[laravoelk]

We are currently still evaluating different providers. So, at the moment, this is not planned. :-)