Move Lua index helpers to components and make owner.factiooRank match other ranks

components/lua/util.hpp

@@ -0,0 +1,20 @@
+#ifndef COMPONENTS_LUA_UTIL_H
+#define COMPONENTS_LUA_UTIL_H
+
+#include <cstdint>
+
+namespace LuaUtil
+{
+    // Lua arrays index from 1
+    constexpr inline std::int64_t fromLuaIndex(std::int64_t i)
+    {
+        return i - 1;
+    }
+
+    constexpr inline std::int64_t toLuaIndex(std::int64_t i)
+    {
+        return i + 1;
+    }
+}
+
+#endif