Added the capability to remove a parameter and refactor of writing parameters and groups

[pariterre]

No description provided.

[pariterre]

Fixed the long forgotten issue #56!

[codecov-io]

Codecov Report

Merging #172 (18a5cb8) into dev (1f0909e) will increase coverage by 0.05%.
The diff coverage is 95.65%.

@@            Coverage Diff             @@
##              dev     #172      +/-   ##
==========================================
+ Coverage   95.46%   95.51%   +0.05%     
==========================================
  Files          40       40              
  Lines        4717     4888     +171     
==========================================
+ Hits         4503     4669     +166     
- Misses        214      219       +5     

Impacted Files	Coverage Δ
include/Group.h	100.00% <ø> (ø)
include/Parameters.h	100.00% <ø> (ø)
src/modules/ForcePlatforms.cpp	89.52% <ø> (ø)
src/Group.cpp	92.30% <62.50%> (-1.96%)	⬇️
src/Parameters.cpp	96.72% <93.80%> (-1.61%)	⬇️
src/ezc3d.cpp	96.49% <100.00%> (+0.64%)	⬆️
test/test_ezc3d.cpp	100.00% <100.00%> (ø)

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