Fixes#7632.
If Caps Lock was on, rules that did not specify Caps Lock state were
not matched, for example:
```
+ [K_SLASH] > 'foo'
```
The truth table for matches is:
Event | Rule | Result
---------|-------------|-----------
NCAPS | 0 | match
NCAPS | CAPS | no match
NCAPS | NCAPS | match
CAPS | 0 | match
CAPS | CAPS | match
CAPS | NCAPS | no match
(Internally, Keyman for Mac currently maps 0 to NCAPS on the event for
simplicity.)
The fix is to ignore the Event Caps Lock state if the rule specifies
neither `CAPS` nor `NCAPS`. If the rule specifies either of these
state masks, then the Caps component of the state mask must match.