internal component arrays

[dlohmeier]

• added "components" dict of arrays to pit
• every component can create its own internal array if needed (create_component_array in base_component.py)
• moved PRESSURE_RATIO and STD_TYPE from branch_idx.py to internal arrays of pumps and compressors, as they are only needed right there

[codecov]

Codecov Report

Patch coverage: 98.66% and project coverage change: +0.07% 🎉

Comparison is base (513ef67) 85.16% compared to head (e983e90) 85.23%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #561      +/-   ##
===========================================
+ Coverage    85.16%   85.23%   +0.07%     
===========================================
  Files           90       90              
  Lines         6166     6202      +36     
===========================================
+ Hits          5251     5286      +35     
- Misses         915      916       +1     

Files Changed	Coverage Δ
pandapipes/component_models/component_toolbox.py	95.65% <85.71%> (-0.86%)	⬇️
...component_models/abstract_models/base_component.py	90.38% <100.00%> (+0.58%)	⬆️
...andapipes/component_models/compressor_component.py	100.00% <100.00%> (ø)
...dapipes/component_models/flow_control_component.py	100.00% <100.00%> (ø)
pandapipes/component_models/pump_component.py	98.29% <100.00%> (+0.17%)	⬆️
pandapipes/idx_branch.py	100.00% <100.00%> (ø)
pandapipes/pf/pipeflow_setup.py	89.49% <100.00%> (+0.04%)	⬆️

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