Fixed memoization module

Implement "raise" (called recontext)
Implement tile

examples/geomtest.cpp

@@ -0,0 +1,40 @@
+//
+// Created by raymo on 1/20/2020.
+//
+
+#include <tc/groups.hpp>
+#include <geometry.hpp>
+#include <iostream>
+
+int main () {
+    auto g = tc::group::B(3);
+    GeomGen gg(g);
+
+    Simplexes s(1);
+    s.vals.push_back(0);
+    s.vals.push_back(1);
+    s.vals.push_back(0);
+    s.vals.push_back(2);
+    s.vals.push_back(1);
+    s.vals.push_back(2);
+
+    auto g_gens = gg.group_gens();
+    std::vector<int> sg_gens = {1,2};
+    auto ns = gg.tile(g_gens,sg_gens,s);
+
+    std::cout << "Before: " << std::endl;
+    std::cout << '\t';
+    for (int val : s.vals) {
+        std::cout << val << " ";
+    }
+    std::cout << std::endl;
+
+    std::cout << " After: " << std::endl;
+    std::cout << '\t';
+    for (int val : ns.vals) {
+        std::cout << val << " ";
+    }
+    std::cout << std::endl;
+
+    return 0;
+}