Fix CI Pipeline stalls on program error

[Smephite]

This PR fixes #90.

• A will-fail test is added to check if the test fails correctly after encountering an invalid instruction.
• The default IRQ handler in the runtime is changed to not loop infinitely upon encountering an unknown IRQ type, but instead return 0xBAD.
• The names for the CMake Testcases are sanitized

Note:

• If, for some reason, any program depends on the default IRQ handler spinning endlessly, this could be impacted.
• This PR does not handle the case where only one of multiple CCs encounters a failure; the case where one core is waiting for a hardware barrier, and the other has failed, is still open, resulting in an endless loop.