Fix uint & ulong for PHP 7.4

[Jan-E]

@0mars
The Windows typedefs uint and ulong are no longer available in PHP 7.4
See https://github.com/php/php-src/blob/PHP-7.4/UPGRADING.INTERNALS#L213

This PR replaces uint by uint32_t and ulong by zend_ulong

See comparable PR for oauth and note the remarks about replacing ulong by zend_ulong
php/pecl-web_services-oauth#5

[coveralls]

Coverage remained the same at 79.627% when pulling d35dd92 on Jan-E:fix_uint_ulong into 3dbdb7e on php:master.

[Jan-E]

I ran this locally against a omars/solr53 server on a Ubuntu virtualbox:

=====================================================================
Number of tests :  151               151
Tests skipped   :    0 (  0.0%) --------
Tests warned    :    0 (  0.0%) (  0.0%)
Tests failed    :    6 (  4.0%) (  4.0%)
Tests passed    :  145 ( 96.0%) ( 96.0%)
---------------------------------------------------------------------
Time taken      :   19 seconds
=====================================================================

=====================================================================
FAILED TEST SUMMARY
---------------------------------------------------------------------
SolrClient::getDebug() - Get request debug logs for the last request [tests\019.solrclient_getdebug.phpt]
SolrInputDocument::setVersion - Set document version [tests\059.solrinputdocument_setversion.phpt]
SolrQuery - Testing Date facet parameters [tests\062.solrquery_date_facet_parameters.phpt]
SolrQuery - testing StatsComponent [tests\064.solrquery_StatsComponent.phpt]
SolrUtils::getSolrVersion() - Returns solr dotted version [tests\082.solrutils_getsolrversion.phpt]
SolrResponse::getResponse() - maxScore [tests\104.solrresponse_get_response_maxscore.phpt]
=====================================================================

The solr dotted version test returned 2.5.0 (DEBUG)

The setVersion test had the same error as in the Appveyor build:
https://ci.appveyor.com/project/Jan-E/pecl-search-engine-solr/builds/25795124/job/6ju28mbs6df9t2h8#L1619

004+ int(1792016384)
004- int(1498562624496861184)

The getDebug test returned an extra line

013+ Mark bundle as not supporting multiuse

The other 3 failing tests had a variant of this:

001+ Notice: SolrQuery::removeStatsField(): Deleted last value from parameter. Removing parameter 'stats.field' from object instance. in tests\064.solrquery_StatsComponent.php on line 17
002+
003+ Notice: SolrQuery::removeStatsFacet(): Deleted last value from parameter. Removing parameter 'stats.facet' from object instance. in tests\064.solrquery_StatsComponent.php on line 24

Edit: 4 of the 6 failed tests are the result of the fact that a snapshot build (which I am doing) automatically enables PHP_SOLR_DEBUG/solr-debug. 'Mark bundle as not supporting multiuse' is apparently generated by curl. That might be related to my specific test setup. Which leaves only the 32/64 bit error in setVersion to be resolved.

[Jan-E]

BTW: compiled versions with the correct compiler (VS16) and OpenSSL 1.1.1 can be found here:
https://www.apachelounge.com/viewtopic.php?t=6617

Those are the ones I tested locally.

[Jan-E]

After merging this PR SolrInputDocument::setVersion remains as a TODO. Probably 32/64 bits:
https://ci.appveyor.com/project/Jan-E/pecl-search-engine-solr/builds/25795124/job/6ju28mbs6df9t2h8#L1619