TODOs FIXED RollingBall.java
TODOs FIXED Vector.java
TODOs FIXED Segment.java
Update Ball.java

Added get method to get the radius
Updated Map.java

Added get method to get the segments of the field
Updated MovingBall.java

Added set method to set up to date the vector's speed
Update Segment.java

Created intersect method to test the intersection of a ball and a
segment
Updated Main.java

Added the vector attribute to our test
Update RollingBall.java

Started to build play method