added loading bar and fast track selection

AngularApp/prototype/src/app/app.module.ts

AngularApp/prototype/src/app/main/main.component.css

AngularApp/prototype/src/app/main/main.component.html

AngularApp/prototype/src/app/main/main.component.ts

...ype/src/app/overview-window/overview-window.component.css

...pe/src/app/overview-window/overview-window.component.html

...type/src/app/overview-window/overview-window.component.ts

AngularApp/prototype/src/app/state.service.ts

Flaskserver/.idea/workspace.xml

Flaskserver/__pycache__/pseudo.cpython-38.pyc

Flaskserver/pseudo.py

experiments/Results & Graphs.ipynb

experiments/images/query_computing_time.png

experiments/images/query_performance.png

experiments/images/sample_computing_time.png

experiments/images/sample_performance.png

experiments/images/track_computing_time.png

experiments/images/track_performance.png