add missing type exports for haddock
note/link Bjorn's linear algebra library
add fromHLists, and a possible way to do cmap
a working cmap (at least at the level of scale)
Merge https://github.com/dmcclean/DimMat
fix scaleRecip (units didn't match the actual arithmetic happening)
AreRecips now works for lists that eventually contain things of kind *
Merge https://github.com/dmcclean/DimMat