Truncating large parameters

[nwittler]

What

Truncate large vector or matrix valued parameters in human output.

Why

Closes #224

How

Introduce a human parameter to the str method, truncate when it's set and a parameter has more than 4 values.

Remarks

The number when to truncate is negotiable, input welcome.

New look:

Q1-freq                               : 5.000 GHz 2pi 
Q2-freq                               : 5.600 GHz 2pi 
Q1-anhar                              : -150.000 MHz 2pi 
Q2-anhar                              : -150.000 MHz 2pi 
Q1-Q2-strength                        : 50.000 MHz 2pi 
cr90-d1-pwc-quadrature                : <100 values>
cr90-d1-pwc-inphase                   : <100 values>

Checklist

Please include and complete the following checklist. Your Pull Request is (in most cases) not ready for review until the following have been completed. You can create a draft PR while you are still completing the checklist. Check the Contribution Guidelines for more details. You can mark an item as complete with the - [x] prefix

• [ ] Tests - Added unit tests for new code, regression tests for bugs and updated the integration tests if required
• [ ] Formatting & Linting - black and flake8 have been used to ensure styling guidelines are met
• [ ] Type Annotations - All new code has been type annotated in the function signatures using type hints
• [ ] Docstrings - Docstrings have been provided for functions in the numpydoc style
• [ ] Documentation - The tutorial style documentation has been updated to explain changes & new features
• [ ] Notebooks - Example notebooks have been updated to incorporate changes and new features
• [ ] Changelog - A short note on this PR has been added to the Upcoming Release section

[codecov[bot]]

Codecov Report

Merging #225 (12801bc) into dev (24211ba) will increase coverage by 0.14%. The diff coverage is 75.00%.

@@            Coverage Diff             @@
##              dev     #225      +/-   ##
==========================================
+ Coverage   74.68%   74.82%   +0.14%     
==========================================
  Files          38       38              
  Lines        5534     5534              
==========================================
+ Hits         4133     4141       +8     
+ Misses       1401     1393       -8     

Impacted Files	Coverage Δ
c3/parametermap.py	93.46% <75.00%> (-0.36%)	:arrow_down:
c3/qiskit/c3_backend_utils.py	56.52% <0.00%> (-4.20%)	:arrow_down:
c3/experiment.py	74.83% <0.00%> (-2.32%)	:arrow_down:
c3/qiskit/c3_backend.py	91.11% <0.00%> (-1.92%)	:arrow_down:
c3/optimizers/optimalcontrol.py	67.44% <0.00%> (-0.80%)	:arrow_down:
c3/qiskit/c3_gates.py	98.43% <0.00%> (+0.25%)	:arrow_up:
c3/libraries/chip.py	62.08% <0.00%> (+0.28%)	:arrow_up:
c3/model.py	87.60% <0.00%> (+1.14%)	:arrow_up:
c3/generator/devices.py	72.76% <0.00%> (+1.15%)	:arrow_up:
c3/utils/tf_utils.py	67.42% <0.00%> (+2.39%)	:arrow_up:
... and 1 more

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