Create configurable experiments

## Feature Request

**Is your feature request related to a problem? Please describe.**
How to be able to run the experiment across different testbes.

**Describe the solution you'd like**
For the moment some values are hardcodes on the templates.

Instead put these values on the values file for that they can be configurable by helm.

**Additional context**
For a more generic approach, we could create a top-level value files that contain the resource specifications for AWS instances (small, large, ...).

The generic resource specs (values file) will go to a base chart that will be inherited by all other frisbee charts.