Calculates the Breaks for Major or Minor Gridlines based on the input limits.
breaks_tern(limits = c(0, 1), isMajor = TRUE, n = 5)
breaks_tern()[1] 0.0 0.2 0.4 0.6 0.8 1.0breaks_tern(limits = c(0,.5),FALSE,10)[1] 0.025 0.075 0.125 0.175 0.225 0.275 0.325 0.375 0.425 0.475