PHRAS-3583

define a custom "sort" analyzer (whole value, lowercase, no diacritics)
fix sort by type (string/date/number)
fix sort on business fields (use "private_caption.field")
sort string fields on ".sort" sub-value (in place of ".raw")
add option for docker/es to activate scripting on search (disabled for now)

lib/Alchemy/Phrasea/SearchEngine/Elastic/Mapping/StringFieldMapping.php

@@ -57,6 +57,10 @@ class StringFieldMapping extends ComplexFieldMapping
         $child->setAnalyzer('general_light');
         $this->addChild($child);
 
+        $child = new StringFieldMapping('sort');
+        $child->setAnalyzer('sort');    // custom = lowercase(keyword)
+        $this->addChild($child);
+
         $child = new StringFieldMapping('truncated');
         $child->setAnalyzer('truncation_analyzer', 'indexing');
         $child->setAnalyzer('truncation_analyzer#search', 'searching');