Make flags or % for germination fraction sensitivity patterns

[dbuona]

UPDATE: create a flag (or 25% of runs) where both %g is insensitive for both species

and both same %g_max = 0.8 -- these will allow comparison of timing-only effects

[donahuem]

Made 20% of runs where both species are chilling insensitive with respect to %germination.

Of the remaining 80% of runs, 20% x 20% = 4% will have both species chilling insensitive with varying gmax (between 0.5-1) 20% + 20% = 40% will have one or the other species chilling insensitive with varying gmax [0.5,1] 1-40%-4% = 56% will have both species chilling-sensitive wrt gmax