Add options to improve model creation speed

[datejada]

Following the performance tips from JuMP docs, this PR implements the following option in the run_spineopt function:

• use_model_names(default = true): whether or not bridges from JuMP to the solver should be added to the model
• add_bridges(default = false): whether or not to optimise the model (useful for running tests)

Notes

• The use_model_names default is equal to true, so the users can gain more speed when creating the model by setting this option to false.

• The add_bridges option is set to true for the MGA algorithm, since it is necessary to run that feature.

Fixes #1148

Checklist before merging

• Documentation is up-to-date
• Unit tests have been added/updated accordingly
• Code has been formatted according to SpineOpt's style
• Unit tests pass

[datejada]

These are the results from the benchmark.

Results with the name creation and bridges

 BenchmarkTools.Trial: 3 samples with 1 evaluation.
 Range (min … max):  67.082 s … 78.006 s  ┊ GC (min … max): 19.92% … 18.47%
 Time  (median):     71.319 s             ┊ GC (median):    18.73%
 Time  (mean ± σ):   72.135 s ±  5.508 s  ┊ GC (mean ± σ):  18.99% ±  0.78%

 Memory estimate: 44.96 GiB, allocs estimate: 714989451.

Results disabling only the name creation

 BenchmarkTools.Trial: 3 samples with 1 evaluation.
 Range (min … max):  60.068 s … 65.056 s  ┊ GC (min … max): 18.35% … 21.78%
 Time  (median):     64.747 s             ┊ GC (median):    18.89%
 Time  (mean ± σ):   63.290 s ±  2.795 s  ┊ GC (mean ± σ):  19.71% ±  1.85%

 Memory estimate: 44.01 GiB, allocs estimate: 691724795.

Results disabling the name creation and the bridges

BenchmarkTools.Trial: 3 samples with 1 evaluation.
 Range (min … max):  58.890 s … 61.703 s  ┊ GC (min … max): 18.55% … 19.59%
 Time  (median):     60.773 s             ┊ GC (median):    19.89%
 Time  (mean ± σ):   60.455 s ±  1.433 s  ┊ GC (mean ± σ):  19.44% ±  0.80%

Memory estimate: 44.01 GiB, allocs estimate: 691724494.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.35%. Comparing base (6dfccfa) to head (e9b972a).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1149      +/-   ##
==========================================
+ Coverage   87.33%   87.35%   +0.01%     
==========================================
  Files         143      143              
  Lines        4130     4135       +5     
==========================================
+ Hits         3607     3612       +5     
  Misses        523      523              

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