feat(python): Repaired python bindings

Python bindings have now been brought back up to feature pairity with
C++. Further, stubs have been added for all python features so that code
completion will work

stubs/gridfire/_gridfire/utils/hashing/reaction.pyi

@@ -0,0 +1,12 @@
+"""
+utility module for hashing gridfire reaction functions
+"""
+from __future__ import annotations
+import typing
+__all__: list[str] = ['mix_species', 'multiset_combine', 'splitmix64']
+def mix_species(a: typing.SupportsInt, z: typing.SupportsInt) -> int:
+    ...
+def multiset_combine(acc: typing.SupportsInt, x: typing.SupportsInt) -> int:
+    ...
+def splitmix64(x: typing.SupportsInt) -> int:
+    ...