Function sweep

sweep(graph, axis?, epsilon?): {
    edges: {
        end: number[];
        start: number[];
    };
    faces: {
        end: number[];
        start: number[];
    };
    t: number;
    vertices: number[];
}[]
Parameters
- graph: FOLD
  a FOLD object
- Optional axis: number = 0
  which axis to sweep along
- Optional epsilon: number = EPSILON
  an optional epsilon
Returns {
    edges: {
        end: number[];
        start: number[];
    };
    faces: {
        end: number[];
        start: number[];
    };
    t: number;
    vertices: number[];
}[]
an array of event objects, each event contains:
- t: the position along the axis
- vertices: the vertices (one or more) at this event along the axis
- edges, faces: where each contains:
  - start: the index which begin at this event in the sweep
  - end: the index which end at this event in the sweep
Description
Perform a line sweep through all components of a graph, This method will create an array of events, each event occurs at a vertex (or vertices), and each event will either "start" or "end" edges and faces. In the case of degenerate edges or faces whose vertices all lie on a line orthogonal to the sweep axis within an epsilon, These components will only exist inside one event and be present in both "start" and "end" arrays.
- Defined in src/graph/sweep.js:201