Add a support to report failures which happen session/test setup/tierdown

[malanka]

Some frameworks support

• shared test/testsuite setup and some tests are not going to be processed or run. Framework might not even give us the names of the skipped tests
• shared test/testsuite tierdown which might also fail and cause original test framwork to fail

In both cases, there is no straight forward place in ctrf report to put such things in except of smuggling the results behind the dummy test failed test case. Can the schema be extended for Results object to support something like 'testFrameworkChecks' which is similar TestObject?