Move scripts to new sub-directory `Analysis`

Trajectories/Analysis/draw_segments.py

Trajectories/Analysis/edgelist_to_Graphviz.py

Trajectories/Analysis/extract_traj.py

Trajectories/Analysis/filter_traj.py

Trajectories/Analysis/graphtool_to_edgelist.py

Trajectories/Analysis/plot_traj.py

Trajectories/Analysis/search_segment.py

Trajectories/Analysis/search_traj.py

Trajectories/Analysis/util_eddies.py

Trajectories/Tests/tests.json

Trajectories/edgelist_to_Graphviz.py