* not_ -> not
* equal overload with epsilon -> equal_epsilon
* ortho(l, r, b, t) -> infinite_ortho
* tweaked_infinite_perspective(fovy, aspect, near, ep) -> tweaked_infinite_perspective_ep
* Function overload: the vec version is suffixed by _vec
* Function overload: the methods taking an epsilon as suffixed by _eps
* L1Norm and L2Norm between two vectors have been renamed: l1_distance, l2_distance
* Matrix columnwise comparisons suffixed by _columns, e.g., `equal` -> `equal_columns`
* All quaternion functions are prefixed by quat_
* min(Vec, Vec) -> min_vec
* 2D cross is namepd perp
* quat_cross(vec, quat) -> quat_inv_cross
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