add Lua 5.4 support as default

src/luaenginecore/lua54_module.pri

@@ -0,0 +1,22 @@
+#/*****************************************************************************
+#* luaEngine Lua Engine for Qt
+#* Copyright (C) 2020 Syping
+#*
+#* Licensed under the Apache License, Version 2.0 (the "License");
+#* you may not use this file except in compliance with the License.
+#* You may obtain a copy of the License at
+#*
+#*     http://www.apache.org/licenses/LICENSE-2.0
+#*
+#* Unless required by applicable law or agreed to in writing, software
+#* distributed under the License is distributed on an "AS IS" BASIS,
+#* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#* See the License for the specific language governing permissions and
+#* limitations under the License.
+#*****************************************************************************/
+
+INCLUDEPATH += \
+    $$PWD/lua54_module
+
+HEADERS += \
+    $$PWD/lua54_module/lua_module.h