Begin Implementation of Dragon Overhaul

git-svn-id: svn+ssh://svn.code.sf.net/p/pcgen/code/Trunk@21106 ef53c05b-3124-4d59-ae7d-fe3273f42be7

https://github.com/pcgen/pcgen/commit/e0fba4c
Conditional Skill moved to core as multiple sets had it.

git-svn-id: svn+ssh://svn.code.sf.net/p/pcgen/code/Trunk@21107 ef53c05b-3124-4d59-ae7d-fe3273f42be7

https://github.com/pcgen/pcgen/commit/a07d808