RF: move .bids into .bids/ subpackage and move tests along

This would open for a better structuring of BIDS support code etc.

All bids.utils are imported within bids/__init__.py so there should be
no effect on imports from heudiconv.bids

Author: yarikoptic

heudiconv/bids/__init__.py

@@ -0,0 +1 @@
+from .utils import *

heudiconv/bids/tests/__init__.py

@@ -28,7 +28,7 @@
     remove_suffix,
 )
 
-from heudiconv.bids import (
+from .. import (
     maybe_na,
     treat_age,
     find_fmap_groups,
@@ -44,7 +44,7 @@
     BIDSFile,
 )
 
-from .utils import (
+from heudiconv.tests.utils import (
     TESTS_DATA_PATH,
 )
 

heudiconv/tests/test_bids.py renamed to heudiconv/bids/tests/test_utils.py

@@ -13,10 +13,10 @@
 from glob import glob
 import errno
 
-from .external.pydicom import dcm
+from ..external.pydicom import dcm
 
-from .parser import find_files
-from .utils import (
+from ..parser import find_files
+from ..utils import (
     load_json,
     save_json,
     create_file_if_missing,
@@ -28,7 +28,7 @@
     remove_suffix,
     remove_prefix,
 )
-from . import __version__
+from .. import __version__
 
 lgr = logging.getLogger(__name__)