HPCC-8810 Generate an RtlDictionaryTypeInfo for dictionary fields

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
Merge pull request #4032 from ghalliday/issue8810

HPCC-8810 Generate an RtlDictionaryTypeInfo for dictionary fields

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>