Unit tests: Reproduce couple of entries from http://hpwren.ucsd.edu/HPWREN-FIgLib/HPWREN-FIgLib-Data/

[iperezx]

• First one one: http://hpwren.ucsd.edu/HPWREN-FIgLib/HPWREN-FIgLib-Data/20160604_FIRE_rm-n-mobo-c/
• Last one one: http://hpwren.ucsd.edu/HPWREN-FIgLib/HPWREN-FIgLib-Data/20210711_FIRE_wc-e-mobo-c/
• Random entry