python: add setup.py to allow installing prjxray libraries

Signed-off-by: Alessandro Comodi <acomodi@antmicro.com>

.gitignore

@@ -11,3 +11,4 @@ run.*.ok
 __pycache__
 *.pyc
 *.swp
+*.egg-info

setup.py

@@ -0,0 +1,21 @@
+import setuptools
+
+with open("README.md", "r") as fh:
+    long_description = fh.read()
+
+setuptools.setup(
+    name="prjxray",
+    version="0.0.1",
+    author="SymbiFlow Authors",
+    author_email="symbiflow@lists.librecores.org",
+    description="Project X-Ray libraries",
+    long_description=long_description,
+    long_description_content_type="text/markdown",
+    url="https://github.com/SymbiFlow/prjxray",
+    packages=setuptools.find_packages(),
+    classifiers=[
+        "Programming Language :: Python :: 3",
+        "License :: OSI Approved :: ISC License",
+        "Operating System :: OS Independent",
+    ],
+)