sparsify function works
added correct spectral plots for gausian similarity graph
Added eigen value display, limit parameter
Added plots for 2nd smallest eigen value vector
Added threshold function, displaying points and their category
Added conductance function
Added histogram
Changed graph plot parameters
Updated gitignore
Added KNN classification plot
Added igraph plots using SVG Display
Fixed eigen-value-not-sorting bug
Added func get_separability
Added func get_separability
Added func get_density
Added func get_clustering_coefficient
Added func get_community_metrics
Displaying the community metrics for all the graphs
Added cluster reording function
Added performance metrics function