feat: cythonize all .pyx files

Author: flavioschneider

setup.py

@@ -22,7 +22,7 @@
         "einops>=0.4",
         "einops-exts>=0.0.3"
     ],
-    ext_modules=cythonize(["*.pyx"]),
+    ext_modules=cythonize(["./aligner_pytorch/*.pyx"]),
     classifiers=[
         "Development Status :: 4 - Beta",
         "Intended Audience :: Developers",