config: Init section before group
config: Init section before group

The metagenomes download group only exists in the GenBank section. In order to detect this
properly during config init, make sure section is set up before group.

Signed-off-by: Kai Blin <ad3597797f6179d503c382b2627cc19939309418@biosustain.dtu.dk>

kblin/ncbi-genome-download,kblin/ncbi-genome-download