updated GUI to generalize the typecheck procedure, default prover is now CVC,...

updated GUI to generalize the typecheck procedure, default prover is now CVC, although this can be changed, currently not saved to the block, so each time you open it will go back to CVC, may want to change this in the future. need to fix some stuff in validation report

git-svn-id: https://groke.mcmaster.ca/svn/grad/colin/trunk/TableTool@6562 57e6efec-57d4-0310-aeb1-a6c144bb1a8b