added required setup.py file

Signed-off-by: Muhammad Umer Farooq <mumerfarooqlablnet01@gmail.com>

.vscode/settings.json

@@ -0,0 +1,6 @@
+{
+    "[python]": {
+        "editor.defaultFormatter": "ms-python.autopep8"
+    },
+    "python.formatting.provider": "none"
+}

setup.py

@@ -0,0 +1,44 @@
+# -*- coding: UTF-8 -*-
+from setuptools import setup, find_packages
+
+
+with open("README.rst", "r") as fh:
+    long_description = fh.read()
+
+
+setup(
+    name="django_ltree",
+    version="0.5.3",
+    python_requires=">=2.7",
+    url="https://github.com/GreenDeploy-io/greendeploy-django-ltree",
+    author="KimSia Sim",
+    author_email="kimsia@oppoin.com",
+    description="Django app to support ltree postgres extension",
+    long_description=long_description,
+    long_description_content_type="text/markdown",
+    license="MIT",
+    package_dir={'': 'src'},
+    packages=find_packages(where='src', exclude=("example",)),
+    extras_require={"develop": ["twine", "tox"]},
+    install_requires=["django>=1.11", "six"],
+    classifiers=[
+        "Development Status :: 4 - Beta",
+        "Framework :: Django",
+        "Framework :: Django :: 1.11",
+        "Framework :: Django :: 2.1",
+        "Framework :: Django :: 2.2",
+        "Intended Audience :: Developers",
+        "Operating System :: OS Independent",
+        "Programming Language :: Python",
+        "Programming Language :: Python :: 2.7",
+        "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.5",
+        "Programming Language :: Python :: 3.6",
+        "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.8",
+    ],
+    project_urls={
+        "Source": "https://github.com/GreenDeploy-io/greendeploy-django-ltree",
+        "Tracker": "https://github.com/GreenDeploy-io/greendeploy-django-ltree/issues",
+    },
+)