Make customizable the fig/topic numbering algorithms

[ToshihikoMakita]

Current implementation only applies grouping max count to fig/table. However grouping varies according to the map hierarchy:

• bookmap-frontmatter or backmatter will no numbering or group by frontmatter/nbackmatter
• bookmap-part-chapter will group by chapter
• bookmap-chapter will group by chapter
• bookmap-appendices-appendix will group by appendix
• bookmap-appendix will group by appendix
• map/topicref will group by top-most topicref Make grouping element customizable is very important challenge.

[ToshihikoMakita]

Work in progress in development branch!

[ToshihikoMakita]

Fixed in version 1.0.5.