Added higher-level API for querying a node's degree in a graph #75
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As pointed out in #74, the current method for getting a node's degree in a graph (
Degree(n *Node, in, out int)
) is unergonomic for most use cases and unnecessarily mimics its C counterpart.This PR introduces higher-level API methods (
Indegree(n *Node)
,Outdegree(n *Node)
, andTotalDegree(n *Node)
)** that simplify retrieving a node's indegree, outdegree, or sum of both. It also adds documentation to the relevant methods to communicate better how they should be used.** I'm open to changing these names if they're unclear or don't follow the naming convention.