Output fix and small features for testing in Maxwell
Description
- Fix output in total_e_field and total_b_field (broken since batchification) and tests added
- Fictitious factor to modify (decrease) the speed of light in vacuum, equivalent to a simulation in linear medium
- Fictitious factor to modify (amplify or decrease) the current density coming from partner systems
Checklist
-
I have checked that my code follows the Octopus coding standards -
I have added tests for all the new features added in this request.