lib.init.detect_modules(): Renovate signature

- Remove package_name and package_path from the prototype of
    detect_modules(). They can and should be deduced from
    namespace['__name__'] and namespace['__path__'], respectively.

  - Make prefix default to None, which signifies "Don't filter by
    prefix".

  - Add an optional extend_namespace parameter, which will make the
    function append the module's __name__ to its __path__. This
    defaults to True, thereby adding a side effect to the function.
    Which is always wanted in the case for all callers of this
    function.

Signed-off-by: Jan Lindemann <jan@janware.com>

src/python/jw/pkg/cmds/__init__.py

@@ -1,8 +1,6 @@
 from ..lib.init import detect_modules
 
 __all__ = detect_modules(
-    package_name = __name__,
-    package_path = __path__,
     namespace = globals(),
     prefix = 'Cmd',
     skip = {'Cmd'},

src/python/jw/pkg/cmds/pkg/__init__.py

@@ -1,8 +1,6 @@
 from ...lib.init import detect_modules
 
 __all__ = detect_modules(
-    package_name = __name__,
-    package_path = __path__,
     namespace = globals(),
     prefix = 'Cmd',
     skip = {'Cmd'},

src/python/jw/pkg/cmds/platform/__init__.py

@@ -1,8 +1,6 @@
 from ...lib.init import detect_modules
 
 __all__ = detect_modules(
-    package_name = __name__,
-    package_path = __path__,
     namespace = globals(),
     prefix = 'Cmd',
     skip = {'Cmd'},

src/python/jw/pkg/cmds/projects/__init__.py

@@ -1,8 +1,6 @@
 from ...lib.init import detect_modules
 
 __all__ = detect_modules(
-    package_name = __name__,
-    package_path = __path__,
     namespace = globals(),
     prefix = 'Cmd',
     skip = {'Cmd'},

src/python/jw/pkg/cmds/projects/check/__init__.py

@@ -1,8 +1,6 @@
 from ....lib.init import detect_modules
 
 __all__ = detect_modules(
-    package_name = __name__,
-    package_path = __path__,
     namespace = globals(),
     prefix = 'Cmd',
     skip = {'Cmd'},