E-Sender API prototype. Create a basic structure

- [x] Create a empty project mvc (.net core 2.1)
- [x]   Implement basic configuration
- [x]   Implement basic middleware

[AB#107](https://dev.azure.com/o2-bionics-llc/cda9516b-08ff-4491-bc59-836494579e0d/_workitems/edit/107)