A common problem with many test suites is that they can take a long time to
run. The longer they run, the less likely you are to run the tests. This
module borrows a trick from 'Apache::Registry' to load up your tests at
once, create a separate package for each test and wraps each package in a
method named 'run_the_tests'. This allows us to load perl only once and
related modules only once. If you have modules which are expensive to load,
this can dramatically speed up a test suite.