Class rotating a set of coordinates, issue #78
wrap long lines
add final modifier
wrap long line
add comment
implement RotationConverter, issue #78
create mRotationCenter and reuse instance
no need to reassign instances that were assigned in init()
add unit tests for CoordinateRotation class
remove mocks
add test for rotation center
add final modifier to create constant
use radius length 1
add test for conversion without rotation
rename testCoordinate
add test for conversion with rotation
rename test
add test scaling radius
refactor : rename variable to ScaleRadius
add tests for scaling down and negative scaling -> reverse direction