Include a `check.match` and `check.not_match` for regex comparison

[LecrisUT]

Should be straightforward as:

def match(regex, string, msg=""):
    __tracebackhide__ = True
    if regex.match(string):
        return True
    else:
        log_failure(f"check {regex}.match({string})", msg)
        return False

In the meantime check.is_true could also be used.

[okken]

This might be cool. I'd consider a PR.