Adds project size overview

Updates the project dashboard to include information about memory consumption per zone. Memory consumption for the different zones is calculated during the different pipeline steps (PreCheck/De-Id, Integration, Validation). The file sizes for the landing_zone are extracted in during the PreCheck/De-Id step.

Values for the zones are only updated if the steps are executed again. If new data is ingested / patient data is updated this is not immediately reflected in the graphic.

Visual looks currently like this (this project doesn't have any data in the release_zone):

We could add also the total project size per project to the visual. That would need some adaption on the underlying postgres table. Let me know what you think and if you would prefer to include the total project size as well.