Added a setup_package.py for adaptive

reproject/adaptive/setup_package.py

@@ -0,0 +1,31 @@
+import os
+
+import numpy as np
+from setuptools import Extension
+
+
+def get_extensions():
+    libraries = []
+
+    sources = []
+    sources.append(os.path.join(REPROJECT_ROOT, "deforest.pyx"))
+
+    include_dirs = [np.get_include()]
+
+    define_macros = []
+
+    define_macros.append(("CYTHON_LIMITED_API", "0x030800f0"))
+    define_macros.append(("Py_LIMITED_API", "0x030800f0"))
+
+    extension = Extension(
+        name="reproject.adaptive.deforest",
+        sources=sources,
+        include_dirs=include_dirs,
+        libraries=libraries,
+        language="c",
+        extra_compile_args=["-O2"],
+        define_macros=define_macros,
+        py_limited_api=True,
+    )
+
+    return [extension]