add Lua sandbox with timer system (milestones 1-5 complete)

sandbox-test/scripts/scripts/test_module.lua

@@ -0,0 +1,11 @@
+-- Test module for SafeRequire tests
+local M = {}
+
+M.value = 42
+M.name = "test_module"
+
+function M.add(a, b)
+    return a + b
+end
+
+return M