AddressSanitizer test suite

[mratsim]

It would be nice to run AddressSanitizer in CI following #78 and #79

Currently parallel_for and parallel_for_staged work

There are a couple of limitations:

• Nim empty strings trigger a global-buffer-overflow in ASAN that pollutes Weave on fibonacci and nqueens for example.
• The parallel_tasks file trigger an use-after-poison for reason to be investigated.

[mratsim]

After f19c295 Persistacks are also address sanitized but while the very short persistack example work we now have a use-after-poison in the parallel_for example.