Load Configuration from CRD or ConfigMap

The TheodoliteExecutor could just receive all required configuration as Kotlin objects. Then, we could have additional classes, which somehow handle user input and create a corresponding TheodoliteExecutor based on the user input. This way, we could, for example, have a TheodoliteOperator which watches CRDs and creates the executor accordingly, a TheodoliteCLI which reads CLI parameters and creates the executor, a TheodoliteConfigReader which parses a config file (from a K8s ConfigMap) and creates the executor and so forth.

Be also sure, that:

• The images can already be specified in the file. I envisage individual YAML files per benchmark.

This issue can be subdivided into three parts:

• load configuration from YAML files
• load configuration from CRD via a Theodolite operator