Added new tangible ops, including tangible.delete

luprex/core/cpp/table.cpp

@@ -125,16 +125,7 @@ LuaDefine(table_count, "c") {
 LuaDefine(table_clear, "c") {
     LuaArg tab;
     LuaStack LS(L, tab);
-    
-    LS.checktable(tab);    
-    lua_pushnil(L);
-    while (lua_next(L, tab.index()) != 0) {
-        lua_pop(L, 1); // Pop the old value.
-        lua_pushvalue(L, -1); // Clone the key
-        lua_pushnil(L); // Push the new value.
-        lua_settable(L, tab.index());
-    }
-    
+    LS.cleartable(tab);
     return LS.result();
 }