Add trajectory complexity measures - implement straightness index

[demoncoder-crypto]

movement/trajectory_complexity.py - The module containing the compute_straightness_index function tests/test_unit/test_trajectory_complexity.py - Unit tests for the straightness index examples/trajectory_straightness.py - Example movement/init.py - Updated to expose the new function

This is the implementation of just compute_straightness_index as mentioned by @niksirbi in Methods to measure complexity of trajectories (paths) #406 Open #506

[sonarqubecloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud