feat(python): Python Bindings

Python Bindings are working again

stubs/gridfiregridfire/_gridfire/io.pyi

@@ -0,0 +1,14 @@
+"""
+GridFire io bindings
+"""
+from __future__ import annotations
+__all__: list[str] = ['NetworkFileParser', 'ParsedNetworkData', 'SimpleReactionListFileParser']
+class NetworkFileParser:
+    pass
+class ParsedNetworkData:
+    pass
+class SimpleReactionListFileParser(NetworkFileParser):
+    def parse(self, filename: str) -> ParsedNetworkData:
+        """
+        Parse a simple reaction list file and return a ParsedNetworkData object.
+        """