CPP tests

[Rombur]

The following tests need to be improved:

• test_energy_storage_device does not test ParallelRC (only SerialRC is tested)
• test_ragone_chart does not test discharge with constant_load, discharge with constant_current and SeriesRC, discharge with constant_power and SeriesRC
• test_resistor_capacitor_data does not test SeriesRC

The following functions need to be tested:

• in deal.II/geometry.templates.h: foo<3>
• in deal.II/post_processor.cc: extract_duration_and_average_power
• in deal.II/post_processor.templates.h:
  • get(std::string const &key)
  • get_vector_keys()
  • check that the debug quantities and the debug solution are needed or if they can be removed. They are not currently tested.
• in deal.II/supercapacitor.cc: no test in 3D
• in deal.II/supercapacitor.h: SuperCapacitorInspector
• in resistor_capacitor.cc:
  • reset x2
  • evolve_one_time_step_linear_current x2
  • evolve_one_time_step_linear_power x2
  • evolve_one_time_step_linear_power x2

[Rombur]

foo has been removed in the distributed branch.

[Rombur]

test_energy_storage_device fixed by #123

[Rombur]

extract_duration_and_average_power removed by #131

[dalg24]

PR #148 fixed test_ragone_chart

[Rombur]

PR #160 fixed test_resistor_capacitor-2

[Rombur]

PR #168 removed reset

[Rombur]

PR #180 added a 3D test.