Fix various spelling errors, mostly in comments but also in texts displayed.
Errors found & interactively fixed using 'codespell', with additional manual
checks after the fixes.
- If readers are attatched, the new reader is probed for a card to check
if a notification needs to be sent
- removal of readers are not notified to the user, we assume that PC/SC
sends the correct card removal event
- The list of readers to be monitored is adjusted once a reader (dis)appears
- On macOS, without PnP notification, we always check for new/removed
readers with SCardListReaders
- fixes interrupt handling in opensc-notify on Unix
fixes https://github.com/OpenSC/OpenSC/issues/1874
Peter Marschall
Frank Morgner