Add error flags to C bindings
Created by: williamfgc
adios2_adios *adios2_init_config(const char *config_file, MPI_Comm mpi_comm, const adios2_debug_mode debug_mode)
replace with:
int adios2_init_config(adios2_adios* adios, const char *config_file, MPI_Comm mpi_comm, const adios2_debug_mode debug_mode)
To basically capture the C++11 library exceptions