(maint) Beaker tests useful for reviewing environment status.

Currently these tests fail, but they do not fail fast so that all data
is collected and output in a review at the end of each test.  This let's
us take a look at the overall state of environment functionality in
varios configurations.

If we fix the failures, these could be moved into acceptance/tests as a
regression test.
(maint) Adjust overlapping test case to use environment.conf

And a non-interpolated basemodulepath.  An interpolated basemodulepath
does not work with directory environments, because it is added to the
loader earlier on, and interpolated with whatever the default
environment is.  A later call with a different environment will be stuck
with the default basemodulepath interpolation.  Not being able to
interpolate basemodulepath in a useful manor is not a problem because
you simply set the expected path in your directory environment's
environment.conf modulepath.