sql: replace column_int with column_int64

Big numvers return from sql to lua as double or as long long depending on it's
size (wheather it fit into mantisa or not)
Remember, in tarantool you can create variable of type long long using LL
postfix (ex: 1235453452343LL)

closes #2469

src/box/lua/sql.c

@@ -155,7 +155,7 @@ lua_push_row(struct lua_State *L, struct prep_stmt_list *l)
 		switch (type) {
 		case SQLITE_INTEGER:
 			typestr[i] = 'i';
-			lua_pushinteger(L, sqlite3_column_int(stmt, i));
+            luaL_pushint64(L, sqlite3_column_int64(stmt, i));
 			break;
 		case SQLITE_FLOAT:
 			typestr[i] = 'f';