Add scripts to run test instantlly using Docker
Fix to check *HashTable->arBuckets is initialized or not
If *HashTable->nTableMask is 0, that means that *HashTable->arBuckets is uninitialized
https://github.com/php/php-src/commit/ea53dc5af6a216b46a84944ee870c5ce18dcfe90#diff-fd78a0a3f78ea28c6907f907f25b908eR160
Add hashdos() test