Adding Open Telekom Cloud (OTC) as a new Provider

[martinh-dev]

Hi cycloidio Team and terracost friends,

I would like to add the Open Telekom Cloud as a new Provider. There is an public available price API, so getting the prices should not be a problem. According to the contribution file, it is necessary to discuss some things here. I would also be happy to get a bit of guidance, if the idea of adding OTC is accepted.

Maybe some side facts about the OTC: It is an european, OpenStack based public cloud, of course with an already existent terraform provider. The public regions are in germany and netherlands and there is a third region in switzerland for the swiss market. The main focus is data protection and sovereignty