Enhance Nori DictionaryBuilder tool

It is the Nori version of sokolov's LUCENE-8863.
This patch has two changes.
1) Improve exception handling
2) Enable external dictionary for testing

Overall, it is the same as LUCENE-8863.

But there are some differences between Nori and Kuromoji.
These can be slightly different on the code.
1) CSV field size
Nori : 12
Kuromoji : 13
2) left context ID == right context ID
Nori : can be different
Kuromoji : always same
3) Dictionary Type
Nori : just one type
Kuromoji : IPADIC, UNIDIC

After this job, I'll apply LUCENE-8866 and LUCENE-8871 to Nori.