Restructure project

We want to restructure the project into the following:

```
./
  certs/       # development certificates
  components/  # our nuget packages
  docs/        # documentation files
    uml/       # uml diagrams
  samples/     # samples / examples
  scripts/     # helper scripts for developing / running
  src/         # source code for main project
  test/        # test projects
```