implement game configuration file

this integrates https://github.com/cktan/tomlc99 into the repo as a dependency

third-party/tomlc99/stdex/arrtab2.toml.res

@@ -0,0 +1,27 @@
+{
+  fruits = [
+    {
+      name = "apple",
+      varieties = [
+        {
+          name = "red delicious",
+        },
+        {
+          name = "granny smith",
+        },
+      ],
+      physical = {
+        color = "red",
+        shape = "round",
+      },
+    },
+    {
+      name = "banana",
+      varieties = [
+        {
+          name = "plantain",
+        },
+      ],
+    },
+  ],
+}