Grep mode for search with exact matches

[mickael-menu]

The --match option is super fast and usually find more desired results, but it could be useful to have an additional --grep one looking for exact matches in all the notes. Regular expressions could be enabled as well for more advanced use cases.

[mickael-menu]

The --exact-match option addresses the common use case of special characters matching.

For regular expressions, maybe a new --exec option would be enough while being also more flexible.

$ zk list --sort title --exec grep 'something' {} \;