Make :trad the default point order

[rafaqz]

We assume traditional point order in most geometry methods, but methods like reproject dont force it and can return flipped point order with some projections. We need to go either way, although I feel that uncertain point order is a nightmare for development.

See discussion here:

https://discourse.julialang.org/t/archgdal-transforming-crs-incorrectly-probably-wrong-long-lat-order/90098/8