Write compact restart files #8022

Job	Run time
Build SU2 (tsan) (BaseOMP-tsan)	6m 45s
Build SU2 (BaseMPI)	9m 46s
Build SU2 (tsan) (ReverseOMP-tsan)	11m 40s
Build SU2 (ReverseMPI)	8m 2s
Build SU2 (ForwardMPI)	7m 1s
Build SU2 (BaseNoMPI)	4m 43s
Build SU2 (ReverseNoMPI)	6m 45s
Build SU2 (ForwardNoMPI)	5m 41s
Build SU2 (BaseOMP)	5m 9s
Build SU2 (ReverseOMP)	7m 23s
Build SU2 (ForwardOMP)	5m 40s
Build SU2 (asan) (BaseNoMPI-asan)	10m 17s
Build SU2 (asan) (ReverseNoMPI-asan)	18m 56s
Thread Sanitizer Tests	0s
Regression Tests	0s
Unit Tests	0s
Address Sanitizer Tests	0s
	1h 47m 48s

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