Resolve ambiguity with apprise.plugins module namespace

While the namespace is physically made of modules, it has been amended
to be the namespace home for the corresponding notifier classes as well.

This turned out to confuse both humans and machines on various ends.

While it has apparently worked for a while, it croaks on Python 3.11
now, and is not considered to have been a good idea in general.

test/test_plugin_macosx.py

@@ -26,7 +26,7 @@
 import os
 from unittest import mock
 
-from helpers import module_reload
+from helpers import reload_plugin
 
 import apprise
 
@@ -59,15 +59,16 @@ def test_plugin_macosx_general(mock_macver, mock_system, mock_popen, tmpdir):
     mock_macver.return_value = ('10.8', ('', '', ''), '')
     mock_popen.return_value = mock_cmd_response
 
-    # Ensure our enviroment is loaded with this configuration
-    module_reload('NotifyMacOSX')
+    # Ensure our environment is loaded with this configuration
+    reload_plugin('NotifyMacOSX')
+    from apprise.plugins.NotifyMacOSX import NotifyMacOSX
 
     # Point our object to our new temporary existing file
-    apprise.plugins.NotifyMacOSX.notify_paths = (str(script), )
+    NotifyMacOSX.notify_paths = (str(script), )
 
     obj = apprise.Apprise.instantiate(
         'macosx://_/?image=True', suppress_exceptions=False)
-    assert isinstance(obj, apprise.plugins.NotifyMacOSX) is True
+    assert isinstance(obj, NotifyMacOSX) is True
 
     # Test url() call
     assert isinstance(obj.url(), str) is True
@@ -82,13 +83,13 @@ def test_plugin_macosx_general(mock_macver, mock_system, mock_popen, tmpdir):
 
     obj = apprise.Apprise.instantiate(
         'macosx://_/?image=True', suppress_exceptions=False)
-    assert isinstance(obj, apprise.plugins.NotifyMacOSX) is True
+    assert isinstance(obj, NotifyMacOSX) is True
     assert obj.notify(title='title', body='body',
                       notify_type=apprise.NotifyType.INFO) is True
 
     obj = apprise.Apprise.instantiate(
         'macosx://_/?image=False', suppress_exceptions=False)
-    assert isinstance(obj, apprise.plugins.NotifyMacOSX) is True
+    assert isinstance(obj, NotifyMacOSX) is True
     assert isinstance(obj.url(), str) is True
     assert obj.notify(title='title', body='body',
                       notify_type=apprise.NotifyType.INFO) is True
@@ -96,7 +97,7 @@ def test_plugin_macosx_general(mock_macver, mock_system, mock_popen, tmpdir):
     # Test Sound
     obj = apprise.Apprise.instantiate(
         'macosx://_/?sound=default', suppress_exceptions=False)
-    assert isinstance(obj, apprise.plugins.NotifyMacOSX) is True
+    assert isinstance(obj, NotifyMacOSX) is True
     assert obj.sound == 'default'
     assert isinstance(obj.url(), str) is True
     assert obj.notify(title='title', body='body',
@@ -121,7 +122,7 @@ def test_plugin_macosx_general(mock_macver, mock_system, mock_popen, tmpdir):
     mock_cmd_response.returncode = 1
     obj = apprise.Apprise.instantiate(
         'macosx://', suppress_exceptions=False)
-    assert isinstance(obj, apprise.plugins.NotifyMacOSX) is True
+    assert isinstance(obj, NotifyMacOSX) is True
     assert obj.notify(title='title', body='body',
                       notify_type=apprise.NotifyType.INFO) is False
 
@@ -130,10 +131,10 @@ def test_plugin_macosx_general(mock_macver, mock_system, mock_popen, tmpdir):
 
     # Test case where we simply aren't on a mac
     mock_system.return_value = 'Linux'
-    module_reload('NotifyMacOSX')
+    reload_plugin('NotifyMacOSX')
 
     # Point our object to our new temporary existing file
-    apprise.plugins.NotifyMacOSX.notify_paths = (str(script), )
+    NotifyMacOSX.notify_paths = (str(script), )
 
     # Our object is disabled
     obj = apprise.Apprise.instantiate(
@@ -145,10 +146,10 @@ def test_plugin_macosx_general(mock_macver, mock_system, mock_popen, tmpdir):
 
     # Now we must be Mac OS v10.8 or higher...
     mock_macver.return_value = ('10.7', ('', '', ''), '')
-    module_reload('NotifyMacOSX')
+    reload_plugin('NotifyMacOSX')
 
     # Point our object to our new temporary existing file
-    apprise.plugins.NotifyMacOSX.notify_paths = (str(script), )
+    NotifyMacOSX.notify_paths = (str(script), )
 
     obj = apprise.Apprise.instantiate(
         'macosx://_/?sound=default', suppress_exceptions=False)
@@ -156,10 +157,10 @@ def test_plugin_macosx_general(mock_macver, mock_system, mock_popen, tmpdir):
 
     # A newer environment to test edge case where this is tested
     mock_macver.return_value = ('9.12', ('', '', ''), '')
-    module_reload('NotifyMacOSX')
+    reload_plugin('NotifyMacOSX')
 
     # Point our object to our new temporary existing file
-    apprise.plugins.NotifyMacOSX.notify_paths = (str(script), )
+    NotifyMacOSX.notify_paths = (str(script), )
 
     # This is just to test that the the minor (in this case .12)
     # is only weighed with respect to the major number as wel