revert moving rules to root to fix python issues

python has some weird autodiscovery mechanisms and it gets rid of the extra
files unless it is within the directory.

I followed a combination of:
- https://setuptools.pypa.io/en/latest/userguide/datafiles.html
- https://stackoverflow.com/questions/24347450/how-do-you-add-additional-files-to-a-wheel
- https://setuptools.pypa.io/en/stable/userguide/package_discovery.html
- https://setuptools.pypa.io/en/latest/userguide/package_discovery.html#custom-discovery
- pypa/setuptools#3197 (comment)
- https://stackoverflow.com/questions/72294299/multiple-top-level-packages-discovered-in-a-flat-layout

Failed miserably

MANIFEST.in

@@ -1 +1 @@
-graft rules
+include libindic/normalizer/rules/*.rules

libindic/normalizer/core.py

@@ -26,7 +26,7 @@
 class Normalizer:
 
     def __init__(self):
-        self.rules_file = files('rules').joinpath('normalizer_ml.rules')
+        self.rules_file = files('libindic.normalizer.rules').joinpath('normalizer_ml.rules')
         self.rulesDict = self.LoadRules()
         pattern = "|".join(map(re.escape, self.rulesDict.keys()))
         self.regex = re.compile(pattern)

pyproject.toml

@@ -36,9 +36,6 @@ Homepage = "https://libindic.org/normalizer"
 requires = ["setuptools", "setuptools-scm"]
 build-backend = "setuptools.build_meta"
 
-[tool.setuptools.packages.find]
-where = ["libindic"]
-
 [project.entry-points."libindic.api.rest"]
 normalize = "normalizer.expose:normalize"