Replaced sorting of arrays by more reliable one

There was a strange sorting in generator for `html_tables.h`:
```
foreach ($multicp_rows as &$v) { ksort($v); }
```
that probably cause some memory corruption and therefore the last lines of `entity_multicodepoint_row multi_cp_html5_02AFD` were printed wrong.

In this diff `html_tables.h` was regenerated using updated `html_table_gen.php` and the test `get_html_translation_table_basic5.phpt` was fixed accordingly.