new experiment: merge values for marspec together in one big file (also used in binreaders/binreader.c)
use the same indexes generator as in the other languages
C version of the binary reader (with reader for the merged file as created by AsciiToBin)
simulate null handling (no impact on performance)
compile with c11 standard and test with higher numbers of indices
taking a new look at the go implementation and trying to figure out why it is so slow compared to the version in c