Added support for "active high" and "active low" latches in BLIF back-end
Added support for "active high" and "active low" latches in BLIF back-end

SymbiFlow/yosys,SymbiFlow/yosys,azonenberg/yosys,YosysHQ/yosys,YosysHQ/yosys,swallat/yosys,azonenberg/yosys,cliffordwolf/yosys,swallat/yosys,antmicro/yosys,YosysHQ/yosys,azonenberg/yosys,azonenberg/yosys,azonenberg/yosys,azonenberg/yosys,SymbiFlow/yosys,azonenberg/yosys,YosysHQ/yosys,swallat/yosys,cliffordwolf/yosys,swallat/yosys,cliffordwolf/yosys,antmicro/yosys,azonenberg/yosys,cliffordwolf/yosys,swallat/yosys,azonenberg/yosys,cliffordwolf/yosys,cliffordwolf/yosys,YosysHQ/yosys,SymbiFlow/yosys,SymbiFlow/yosys,SymbiFlow/yosys,cliffordwolf/yosys,swallat/yosys,YosysHQ/yosys,antmicro/yosys,SymbiFlow/yosys,antmicro/yosys,cliffordwolf/yosys,antmicro/yosys,YosysHQ/yosys,swallat/yosys,antmicro/yosys,swallat/yosys,antmicro/yosys,YosysHQ/yosys,SymbiFlow/yosys,antmicro/yosys,cliffordwolf/yosys,swallat/yosys