Add `lax::open_hypergraph` function to delete an edge

[statusfailed]

In the impl for lax::hypergraph::Hypergraph, add a function to delete a list of edges

    pub fn delete_edge(&mut self, ids: &[EdgeId]) {
        todo!()
    }

You can assume that each id in ids is a valid EdgeId for this Hypergraph (and panic if it's out-of-bounds).

You will need to:

• Remove each edge from the list of edge labels
• Remove each edge's adjacency information from the adjacency list

NOTE: this method takes a slice of edge ids, since removing them one-at-a-time will be less efficient.