Implement the test tasks

[Rylynnn]

Improve the test case

• Create test case with test_task_cd.cpp.
• Test the updated code test_spherical_comparable_distance.cpp
• Here is the input datatestcase_cd.out for test, and the output data testresult_cd.out for test.
• Change to divide by CLOCKS_PER_SEC to get seconds. if you do not divide with CLOCKS_PER_SEC you are actually counting cpu clocks i.e. no secs or msec.
• Add loops to make timing not looks small.

[Rylynnn]

Test spherical comparable distance

The test code is test_spherical_comparable_distance.cpp

The compiled command is:

c++ -I ~/GSoC17/boost_1_64_0 test_spherical_comparable_distance.cpp -o test_spherical_comparable_distance

The simple result is;

rylynnn@rylynnn:~/GSoC17$ ./out
distance:17ms
comparable_distance:1ms