Callisto Documentation #2

[MickeyPa]

A subtask of #17.

Create and update documentation for Iteration 2.

1. Create Sequence Diagrams [Create Callisto AI Sequence Diagrams #27]
2. Create Architecture Diagram [Create Callisto AI Architecture Diagram #28]
3. Create Class Diagrams [Create Callisto AI Class Diagrams #29]

[Story Points: 10]
[Risk: Low]
[Priority: High]