adding test cases to test functions
fixed calc circle intersection function and tweaked tests
added equals and hashcode to InfBufLine
changes
added test for if all points in a tangent line are outside the circle
added test for if all points in a tangent line are outside the circle
updated documentation
attempting to impl the getDistAway from pt algor
still trying to figure out the tangent function in the tests and will take care of point translation next..
made a little funtion in main to translatep point