rename test library to app & rename app.name to app.script

src/logic/scripting/lua/libs/api_lua.hpp

@@ -37,7 +37,7 @@ extern const luaL_Reg packlib[];
 extern const luaL_Reg particleslib[]; // gfx.particles
 extern const luaL_Reg playerlib[];
 extern const luaL_Reg quatlib[];
-extern const luaL_Reg testlib[];
+extern const luaL_Reg applib[];
 extern const luaL_Reg text3dlib[]; // gfx.text3d
 extern const luaL_Reg timelib[];
 extern const luaL_Reg tomllib[];

src/logic/scripting/lua/libs/libapp.cpp

@@ -1,5 +1,5 @@
 #include "api_lua.hpp"
 
-const luaL_Reg testlib[] = {
+const luaL_Reg applib[] = {
     {NULL, NULL}
 };