Increase max_columns_of_data default to prevent wrapped format?

[kmarkovich]

Hello, I somewhat frequently run into an issue of flopy writing external arrays using the old-school wrapped format. I get around this by setting sim.simulation_data.max_columns_of_data to a very large number, but I wonder why the default isn't already something very large? Seems to me that in this day and age, we can afford to have nrow x ncol array external files. Just a thought, thanks for all y'all do!

[wpbonelli]

I tentatively put this under 4.x, as it seems it should probably be considered a breaking change.. but if others feel it's OK to do this sooner I'm happy to be overruled