Lua: Implement Utils::Lua

Change-Id: Ib5a7f63d1c37b29beb424707962d21102db5927c
Reviewed-by: hjk <hjk@qt.io>

src/plugins/lua/luaengine.h

@@ -10,6 +10,7 @@
 
 #include <utils/expected.h>
 #include <utils/filepath.h>
+#include <utils/lua.h>
 
 #include <sol/sol.hpp>
 
@@ -108,6 +109,9 @@ public:
         return {};
     }
 
+    // Runs the given script in a new Lua state. The returned Object manages the lifetime of the state.
+    std::unique_ptr<Utils::LuaState> runScript(const QString &script, const QString &name);
+
 protected:
     Utils::expected_str<void> connectHooks(
         sol::state_view lua, const sol::table &table, const QString &path);