moved a lot of eval files

code/eval/charts/240212_first_try_memgraph.html

code/eval/charts/240212_first_try_memgraph.jpg

code/eval/charts/240212_first_try_memgraph.pdf

code/eval/charts/240212_first_try_neo4j.html

code/eval/charts/240212_first_try_neo4j.jpg

code/eval/charts/240212_first_try_neo4j.pdf

code/eval/charts/240212_first_try_ongdb.html

code/eval/charts/240212_first_try_ongdb.jpg

code/eval/charts/240212_first_try_ongdb.pdf

code/eval/charts/240212_first_try_pg.html

code/eval/charts/240212_first_try_pg.jpg

code/eval/charts/240212_first_try_pg.pdf

code/eval/charts/240212_window_size_2000/neo4j.html

code/eval/charts/240212_window_size_2000/ongdb.html

code/eval/charts/240212_window_size_2000/pg.html

code/eval/charts/240212_window_size_2500/memgraph.html

code/eval/charts/240212_window_size_2500/neo4j.html

code/eval/charts/240212_window_size_2500/ongdb.html

code/eval/charts/240212_window_size_2500/pg.html

code/eval/charts/charts.ipynb