implement game configuration file

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

third-party/tomlc99/stdex/int0.toml.res

@@ -0,0 +1,10 @@
+{
+  int1 = 99,
+  int2 = 42,
+  int3 = 0,
+  int4 = -17,
+  int5 = 1000,
+  int6 = 5349221,
+  int7 = 5349221,
+  int8 = 12345,
+}