gui: one can now display the mesh on which the eikonal equation was solved.

2 jobs for master in 32 seconds
Status Job ID Name Coverage
failed unit_tests_with_coverage #377216


skipped run_scenario_files #377217
Name Stage Failure
unit_tests_with_coverage Test
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR] mvn <goals> -rf :simulator
ERROR: Job failed: exit status 1