How-To start a local `model-server`

If you are interested in a more practical usage of what is presented here, check out the samples project

To run the model-server with default configuration run:
```
[modelix.core] $ ./gradlew model-server:run
```

To specify a different jdbc configuration, you can add the -jdbcconf arguement:

[modelix.core] $ ./gradlew model-server:run --args='-jdbcconf path-to-my-database.properties'

During development or to perform tests it is recommended to start the model-server with in-memory storage:
```
[modelix.core] $ ./gradlew model-server:run --args='-inmemory'
```