Revert alias and provides in Orchestra\Foundation\Services\TestCase. Closes #76

Signed-off-by: crynobone <crynobone@gmail.com>
Add Orchestra\Foundation\Services\ApplicationTestCase. Closes #77

Signed-off-by: crynobone <crynobone@gmail.com>
Tweak ApplicationTestCase based on changes in orchestra/testbench.

Signed-off-by: crynobone <crynobone@gmail.com>