Test result of Andoyer and Lambert

[Rylynnn]

Implement of Andoyer and Lambert:

• compare_length_andoyer.hpp
• compare_length_lambert.hpp

Reference:

https://archive.fosdem.org/2017/schedule/event/geo_boost_geography/attachments/slides/1748/export/events/attachments/geo_boost_geography/slides/1748/FOSDEM17_vissarion.pdf
Andoyer:
http://www.codeguru.com/cpp/cpp/algorithms/article.php/c5115/Geographic-Distance-and-Azimuth-Calculations.htm
http://jmst.ntou.edu.tw/marine/21-3/287-299.pdf
Lambert:
http://www.ilouzhu.com/yuedu/9vnt.html
http://jmst.ntou.edu.tw/marine/21-3/287-299.pdf

[Rylynnn]

Test Andoyer

https://github.com/BoostGSoC17/geometry/tree/feature/filter/example/test_approximation/test_andoyer

• The code of test andoyer:test_andoyer.cpp
• I random almost 10000 test case to test the code, and the result is:

The number of testcase:98367
The number of different result:24366

[Rylynnn]

Test Andoyer

https://github.com/BoostGSoC17/geometry/tree/feature/filter/example/test_approximation/test_lambert

• The code of test lambert:test_lambert.cpp
• I random almost 10000 test case to test the code, and the result is:

The number of testcase:98367
The number of different result:24406

[Rylynnn]

To make the test more convenient, I implement a header of comparable vincenty: compare_length_vincenty.hpp