Added Doxygent compliant code documentation for unit tests

Author: PrzemekWirkus

test/__init__.py

@@ -14,3 +14,9 @@
 See the License for the specific language governing permissions and
 limitations under the License.
 """
+
+"""! @package mbed-ls-test
+
+Unit tests for mbed-ls package
+
+"""

test/basic.py

@@ -23,6 +23,8 @@
 
 
 class BasicTestCase(unittest.TestCase):
+    """ Basic test cases checking trivial asserts
+    """
 
     def setUp(self):
         pass

test/detect_os.py

@@ -29,6 +29,8 @@
 
 
 class DetectOSTestCase(unittest.TestCase):
+    """ Test cases for host OS related functionality. Helpful during porting
+    """
 
     def setUp(self):
         pass

test/listing.py

@@ -26,6 +26,8 @@
 
 
 class MbedListingestCase(unittest.TestCase):
+    """ UNit tests for mbed-ls ability to list connected devices
+    """
 
     def setUp(self):
         self.mbeds = create()

test/mbed_htm.py

@@ -30,6 +30,8 @@
 
 
 class ParseMbedHTMTestCase(unittest.TestCase):
+    """ Unit tests checking HTML parsing code for 'mbed.htm' files
+    """
 
     def setUp(self):
         self.mbeds = create()