Regression tests for libpano13

by Tomasz Meger for Hugin and panotools

This project will add regression tests for libpano13. Current situation: libpano have many responsibilities it is one of the main component of the whole project. Main tasks of the library are: image transformation, optimization. Libpano is consider as a relatively mature and stable library, however its development has been slowed by the lack of regression testing. There is no flying without wings. (French) There is no fast program development without regression tests.