Add back test case assertions and craft test command

[girardinsamuel]

Fixes #192 Fixes https://github.com/MasoniteFramework/masonite/issues/456 This PR adds back:

• craft test command
• captureOutput() helper in test
• uncomment some commented assertions tests which are working now
• add ability for assertRouteParameterHas() to check param value

python craft test MyAppTest will create:

from masonite.tests import TestCase

class MyAppTest(TestCase):

    def setUp(self):
        super().setUp()

    def test_something(self):
        self.assertTrue(True)

in tests/unit/test_my_app.py

Directory can be changed with python craft test MyFeatureTest --directory tests/features