Re-enable tests on Win32

[aytey]

In #46, psychec's test-suite.exe was disabled (on Win32) as it does not correctly link on that platform.

They were disabled because (at the time of #46) psychec's tests live in psychecfe.{so,dll} and are not correctly exposed (on Windows) in a way that allows test-suite.exe to link against them without link-time errors.

This is a "reminder issue" such that it is not forgotten to re-enable the building/running of those tests later on.