Add support for throwing RAII destructors

Add support for throwing RAII destructors

When a test finishes or fails the stack is unwinded some of such objects'
destructors still perform actions that may report an error/throw an exception.
If we just surround these actions with try/catch block we'll lose information
about errors in these destructors. If we let destructors throw it may lead to
program termination (unhandled exception during stack unwind caused by another
exception).

To prevent program termination and still get the information about errors in
destructors surround the throwing code in your RAII object destructor with
SafeCleanup::run.

Tests for cleanup exception handling are added and can be executed with:
cleanup_test.sh

Change-Id: Id4e257aadea9b18fe890c89d8f182082a7f191a3