Remove dependency on hash extension on 8.6

[remicollet]

From UPGRADING.INTERNALS

  . The zend_parse_parameters_none_throw(), zend_parse_parameters_throw(),
    and ZEND_PARSE_PARAMS_THROW have been removed due to being misleading,
    since ZPP always throws, unless ZEND_PARSE_PARAMS_QUIET is given. Use
    the non-throw versions.

  . Added zend_bin2hex() and zend_bin2hex_str() as helper functions to remove
    dependencies on /ext/hash in various extensions.

And remove dependency on hash extension

[kocsismate]

Uhh @remicollet I just completely didn't notice this PR, and I fixed the same issues just now (#80) 😢 I'm sorry very much, and thanks for the help!

[kocsismate]

This would be a slight change in the behavior because it wouldn't throw on PHP 7.x. That's why I used new ZPP for PHP 8.x, and stayed with zend_parse_parameters_throw() for PHP 7.x. In a few years, we can get rid of the old ZPP, I guess it will be time to require PHP 8.0+ then.

The ZPP migration also uncovered a few type issues which I also fixed/suppressed.

[remicollet]

Rebased and amended

[remicollet]

Notice, checked no ext/hash symbols are used by

$ objdump -T modules/scrypt.so  | grep UND | grep -v GLIBC
0000000000000000      D  *UND*	0000000000000000  Base        compiler_globals
0000000000000000      D  *UND*	0000000000000000  Base        zend_parse_parameters
0000000000000000  w   D  *UND*	0000000000000000  Base        _ITM_deregisterTMCloneTable
0000000000000000      D  *UND*	0000000000000000  Base        zend_known_strings
0000000000000000      D  *UND*	0000000000000000  Base        _safe_emalloc
0000000000000000      D  *UND*	0000000000000000  Base        zend_argument_error
0000000000000000      D  *UND*	0000000000000000  Base        php_error_docref
0000000000000000  w   D  *UND*	0000000000000000  Base        __gmon_start__
0000000000000000      D  *UND*	0000000000000000  Base        zend_hash_str_find
0000000000000000      D  *UND*	0000000000000000  Base        zend_add_attribute
0000000000000000      D  *UND*	0000000000000000  Base        _efree
0000000000000000      D  *UND*	0000000000000000  Base        _zend_new_array_0
0000000000000000      D  *UND*	0000000000000000  Base        _emalloc
0000000000000000      D  *UND*	0000000000000000  Base        zend_bin2hex
0000000000000000      D  *UND*	0000000000000000  Base        executor_globals
0000000000000000      D  *UND*	0000000000000000  Base        add_assoc_long_ex
0000000000000000  w   D  *UND*	0000000000000000  Base        _ITM_registerTMCloneTable

[kocsismate]

Thank you very much!