Migrate https://phabricator.release11.com/diffusion/CZOPW/czopw.git to release11-tools-web

FunctionSet/3.0-3.1_changes

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+XPath 3.0:
+Inline functions (kinda lambda)
+Dynamic function calls - function may be called without being referenced by name (find function in collection and call)
+Union types - collections containing elements of different types
+Namespace literals - Namespace may be embeded into function name
+New string concatenation operator '||'
+Mapping operator - '!' performs evaluation for each element in sequence and concatenates results
+
+
+XPath 3.1:
+Support for array and map data types
+New operator for function chaining - '=>'