Allow single-technology benchmark
The Snakefile works by expanding combinations of reads of assemblers, and that for each kind of technology : long, hybrid, hifi. If there is no long-reads or long-reads assembler, the expansion fails and this causes the rule all to expect non-sense results which can't be generated. The same is true for the other two kinds of technology
I want the user to be able to use only long reads, hybrid or Hi-Fi assemblers, without having to comment out line in the snakefile, and by just editing the Snakefile.
I'll do this by adding a bunch of if conditions in the Snakefile rule all