Grassmann.jl A\b 3x faster than Julia's StaticArrays.jl

Yes, I’m aware you implemented it, but you’ve not yet convinced me to not use it here. This Grassmann program is my playground for experiments with mathematics and programming. It works fine for me, and I am always willing to consider changing its application in any use of Base.@pure if it’s a mistake, but am not currently convinced it is a demonstrable issue here.