Profile and output time spent for each test

[nergal-perm]

It turned out that table tests are slow (for Puerto-Rico 59 tests take around 3.5 seconds), this is gonna lead to very slow feedback and undermine the whole TDD idea for tables.

One of possible reasons for tests to be slow is the file system I/O - each test must be read from the file and then all the tables should be read from their files in order to create the unique context for the test. But this is a hypothesis that should be tested, obviously.

Thus, the profiling and checking the time spent by setting up the test.