Bring up the boolean type.

Add the necessary pieces to the boolean type, so that the CVC3 code can
generate for it.  Currently the only failing issue is some operators to actually
make use of it.

git-svn-id: https://groke.mcmaster.ca/svn/grad/colin/branches/TableTool_javization@10467 57e6efec-57d4-0310-aeb1-a6c144bb1a8b