Skip variants with the FILTER flag set on loading.
Skip variants with the FILTER flag set on loading.

Most of the built in tools don't seem to use this flag, but should.
It also requires the user to use it every time they want to do a query.
This change makes GEMINI more conceptually a database of all of
the possible real variants.

bw2/gemini,bw2/gemini,arq5x/gemini,xuzetan/gemini,arq5x/gemini,bgruening/gemini,xuzetan/gemini,bpow/gemini,udp3f/gemini,bw2/gemini,brentp/gemini,bgruening/gemini,xuzetan/gemini,udp3f/gemini,arq5x/gemini,heuermh/gemini,heuermh/gemini,bpow/gemini,bpow/gemini,bgruening/gemini,bpow/gemini,heuermh/gemini,brentp/gemini,udp3f/gemini,arq5x/gemini,brentp/gemini,xuzetan/gemini,udp3f/gemini,bgruening/gemini,heuermh/gemini,brentp/gemini,bw2/gemini