bump version to 0.3.1 license an packaging updates (#37)

Author: bfineran

setup.py

@@ -32,7 +32,7 @@ def _setup_extras() -> Dict:
 
 setup(
     name="compressed-tensors",
-    version="0.3.0",
+    version="0.3.1",
     author="Neuralmagic, Inc.",
     author_email="[email protected]",
     license="Apache 2.0",