Add test cases for atlas-lapack egg

[ThatGeoGuy]

As per issue #3 test cases need to be added to ensure that the LAPACK functions used by ATLAS can be called correctly, and produce the expected result. Moreover, these test cases will serve as example documentation for users in the future to see how each of the functions can be used in practice.

Ideally I would like to use the test and maybe even the test-generative eggs to create these tests, as single static asserts are not always the most intuitive way to run tests. Moreover, the test runners in the test/test-generative eggs provide much more informative output.

Care should also be taken to ensure complex-number functions (prefixed with z or c) also work, as they can be subtly different than real-number functions (prefixed with s or d) as evidenced by issues #3 and #2.