* **face:** Implement final fix for Face3D normal calculation ([469b274](https://github.com/ladybug-tools/ladybug-geometry/commit/469b274f233ccaf744704a1450215405d08404d6))
* **face:** Improve calculation of normal from Face3D ([1f6c03a](https://github.com/ladybug-tools/ladybug-geometry/commit/1f6c03a4fab0a1fbb0591286a6f89564d0ef53d0))
* **face:** Prevent failure in the case of a sliver faces ([5238115](https://github.com/ladybug-tools/ladybug-geometry/commit/52381154b5b9949f9c62abf70619cf1624f15c78))
* **pointvector:** Support is_equivalent for Vectors ([0ca574a](https://github.com/ladybug-tools/ladybug-geometry/commit/0ca574a6f2de1a5a0b163c5ed64be6b0da004ae2))
* **face3d:** Fix incorrect spelling of the word contour ([5ad6f4e](https://github.com/ladybug-tools/ladybug-geometry/commit/5ad6f4e012b1c502190f7ff6ac399115420b8233))