Clean up documentation of examples package.
Document ParamExternalsTest
Rename computeLegacy to computeExternals
Add Jdoc to IdExamplesTest
Override ResultType getter in IdExamplesTest.
Less optimistic JDoc for getResultType
Fix missing result file error message.
Correct result compare method name.
Add initial result files for pog examples test.
Delete old examples and bug regression tests

They have been replaced by versions using the new framework.
Replace pog base test with new framework version.
Add result type information to POG tests.
Comment out playground test.
Add missing space to pog result string

This means we have to update a LOT of result files.
Replace OldString test with a version using new framework.
Make playground test compatible with new test framework.
Delete unused test files.

The migration to the new test framework has made them useless.
Move legacy tests from noparen to direct.
Remove hardcoded result update.
Pull all legacy tests into new framework.