This is a core function. Parameters on how to consider a window heterozygous are here (maxHom, maxMiss)
heteroZygotTestCpp(x, gaps, maxHom, maxMiss, maxGap)vector of 0/1 genotypes (from genoConvert())
vector of differences between consecutive positions (gaps) in bps
max n. of homozygous SNP in a heterozygous window
max n. of missing in a window
max distance between consecutive SNP in a window to be still considered a potential run
TRUE/FALSE (whether a window is heterozygous or NOT)