Create new Orka provider stub

Overview

Inside of autoscaler we have Providers which are the entry to provision/get/delete resources on any cloud provider. Create a new provider orka that implements the interface and make it configurable to the user to set it in config.toml. For now, the implementation shouldn't do anything but only stubbed out.

Reference

• PoC merge request for all the requests that we will be using
• API documentation
• Getting started