+ Rename output executables to match directory structure
+ Remove libraries for small examples
+ Supress -Wreturn-type warnings for singleton that is intentionally not copyable
+ Fix incorrect library name for `algorithms/trees/BST` example
+ Update root CMakeLists.txt for major directories to set binary path
+ Add instructions to install CMake LTS with pip
+ Allows Graph member functions to remain const
+ Easy to pass traversal information around as needed
+ Update DFS and BFS functions to return traversal information
+ Allows result of topological sort to match examples shown in MIT Algorithms
+ Correct order of initialization for all graphs and adjacent nodes in graph.cpp
+ Provide overloaded DFS for beginning at a specific node within the graph