Initial commit.
Moved main to Main.
First spec.
Added the other OddQ, EvenR, OddR coordinate types.
Minor twiddling with the formatting.
Added a bit more testing.
Minor twiddling with the formatting.
Added adding.
Added neighbours, some rework.
Some further rework of the hex coordinate types.
Added spec around neighbours.
Added spec for axial coordinates.
Rename.
Some noodling with the HexGrid.