429 almo and bcfw changes

[JannisHal]

This pull request contains:

• Add ALM header for ouput
• Remove infeasibility from BCFW output
• Add update order to BCFW output
• Add print callback extension allowing to add custom columns to the output of any algorithm
  -- minimal changes to make_print_callback and make_trajectory_callback needed
  -- Applied for ALM to print infeasibility
• Add BCFW example with showcase of custom update order

[codecov]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

Comparison is base (6be7c09) 87.04% compared to head (0877347) 87.08%.
Report is 4 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #437      +/-   ##
==========================================
+ Coverage   87.04%   87.08%   +0.03%     
==========================================
  Files          20       20              
  Lines        2439     2578     +139     
==========================================
+ Hits         2123     2245     +122     
- Misses        316      333      +17     

Files	Coverage Δ
src/alternating_methods.jl	94.84% <100.00%> (+0.40%)	⬆️
src/block_coordinate_algorithms.jl	93.81% <100.00%> (-0.13%)	⬇️
src/callback.jl	96.38% <96.72%> (-1.66%)	⬇️

... and 2 files with indirect coverage changes

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[matbesancon]

don't forget new lines at the end of files

[matbesancon]

probably need to rerun the formatter after this