DTIO: Fix app-side memory leak (#546) #2201

Job	Run time
build-deps (gnu, V114, 4.9.2, 4.4.0)	38s
build-deps (clang, V114, 4.9.2, 4.4.0)	1m 6s
build-deps (mpi, V114, 4.9.2, 4.4.0)	39s
Debug serial build	5m 54s
Debug parallel build	6m 59s
Threadsafe ON, No Fortran	4m 29s
Threadsafe ON, Parallel, No Fortran	5m 42s
Sanitize address, no fortran	6m 39s
Sanitize undefined	6m 42s
Sanitize integer	4m 54s
GTest Enabled	6m 10s
No applications, legacy, or fortran	3m 59s
CATALYST2, parallel	8m 54s
KOKKOS, parallel	9m 3s
No deprecated exodus functions	8m 0s
Use modern CMake configure of netCDF and HDF5 packages with GTest	8m 56s
ADIOS2 enabled	11m 45s
FAODEL and METIS enabled	12m 16s
C++20 build serial clang	7m 34s
C++20 build serial gnu	7m 9s
C++20 build parallel	8m 45s
	2h 16m 13s

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