Add Edge.make_parabola

[jdegenstein]

Quick prototype, arbitrarily chose the two-angle signature for GC_MakeArcOfParabola

from build123d import *
from OCP.gp import gp_Parab
from OCP.GC import GC_MakeArcOfParabola
from OCP.BRepBuilderAPI import BRepBuilderAPI_MakeEdge
from math import radians

@classmethod
def _make_parabola(
    cls,
    focal_length: float,
    start_angle: float,
    end_angle: float,
    plane: Plane = Plane.XY,
) -> Edge:
    parabola_gp = gp_Parab(plane.to_gp_ax2(), focal_length)

    parabola_geom = GC_MakeArcOfParabola(
        parabola_gp, radians(start_angle), radians(end_angle), True
    ).Value()

    return cls(BRepBuilderAPI_MakeEdge(parabola_geom).Edge())

Edge.make_parabola = _make_parabola

test_parabola = Edge.make_parabola(focal_length=.1, start_angle=-20, end_angle=30, plane=Plane.XY)