Update tree.py with Paths to Nodes function. #234
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Added a method called paths_to_nodes, which takes a tree as a parameter and returns an array of all paths from the root node to each other node. This method would be useful for least-cost-path algorithms such as Dijkstra's algorithm, which require the paths between the root and all nodes to be known, not just the paths from the root to the leaves. - Cody Shamback
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Added a method called paths_to_nodes, which takes a tree as a parameter and returns an array of all paths from the root node to each other node. This method would be useful for least-cost-path algorithms such as Dijkstra's algorithm, which require the paths between the root and all nodes to be known, not just the paths from the root to the leaves.