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

src/python/bindings.cpp

@@ -3,7 +3,6 @@
 
 #include "types/bindings.h"
 #include "partition/bindings.h"
-#include "expectations/bindings.h"
 #include "engine/bindings.h"
 #include "exceptions/bindings.h"
 #include "io/bindings.h"
@@ -11,8 +10,9 @@
 #include "screening/bindings.h"
 #include "solver/bindings.h"
 #include "utils/bindings.h"
+#include "policy/bindings.h"
 
-PYBIND11_MODULE(gridfire, m) {
+PYBIND11_MODULE(_gridfire, m) {
     m.doc() = "Python bindings for the fourdst utility modules which are a part of the 4D-STAR project.";
 
     pybind11::module::import("fourdst.constants");
@@ -26,9 +26,6 @@ PYBIND11_MODULE(gridfire, m) {
     auto partitionMod  = m.def_submodule("partition", "GridFire partition function bindings");
     register_partition_bindings(partitionMod);
 
-    auto expectationMod  = m.def_submodule("expectations", "GridFire expectations bindings");
-    register_expectation_bindings(expectationMod);
-
     auto reactionMod  = m.def_submodule("reaction", "GridFire reaction bindings");
     register_reaction_bindings(reactionMod);
 
@@ -47,6 +44,9 @@ PYBIND11_MODULE(gridfire, m) {
     auto solverMod  = m.def_submodule("solver", "GridFire numerical solver bindings");
     register_solver_bindings(solverMod);
 
+    auto policyMod  = m.def_submodule("policy", "GridFire network policy bindings");
+    register_policy_bindings(policyMod);
+
     auto utilsMod  = m.def_submodule("utils", "GridFire utility method bindings");
     register_utils_bindings(utilsMod);
 }