* adds fundings field to AbstractCompensation model
* adds funded by to detail view templates of Compensation and EcoAccount
* adds/updates translations
* adds deductable_surface to EcoAccount model to provide an easy way to change the deductable amount from an account -> depends on external funding e.g. with AktionBlau or similar
* adds overview of deducted and deductable volume to detail view
* adds check to eco account model, so the deductable_surface can never be larger than the total amount of after_state surface sum
* adds german formating for python logic based number formating
* adds/updates translations