Update the system with a CVC3Generator class.

Move all CVC3 code into CVC3Generator.  Currently it is just static methods,
next is to make implement an interface!

git-svn-id: https://groke.mcmaster.ca/svn/grad/colin/branches/TableTool_javization@10465 57e6efec-57d4-0310-aeb1-a6c144bb1a8b