Feature Request - Force calling FORMAT header lines

[ACEnglish]

When force calling, sniffles populates the fields FORMAT/GQ,FORMAT/DR,FORMAT/DV but does not add tags defining these fields to the header. For example ##FORMAT=<ID=GQ,Number=1,Type=Integer,Description="Phred scaled quality of genotype">. If these header lines aren't present in the input vcf then the output vcf is invalid.

[fritzsedlazeck]

Right I think @zhengxinchang has a code request for that.
Thanks for this
Fritz

[hermannromanek]

Yes, it's #451

I'll merge it once #465 is fixed.

[ACEnglish]

My bad. I didn't search for issues/pulls before posting this. I'll close this issue since the pr can do the tracking