[feature] replace dependence on geo with parry2d-f64

[drobnyjt]

Is your feature request related to a problem? Please describe.
Currently, the 2D geometry features use geo for geometry checks (point in polygon, etc.). However, the 3D geometry routines use parry3d-f64. If geo can be completely replaced with parry2d-f64, that would bring some additional consistency.

Proposed solution
Replace calls to geo with calls to parry2d-f64.