Add 'search' method to enable ticket listing

[aweiteka]

Service Now users want to be able to list the tickets they own so they can find the ticket ID they want to edit/comment/close. A **kwargs method would probably be the most useful. For example:

search(assigned_to='[email protected]')

[dmranck]

My gut reaction with this is it's slightly outside the scope of ticketutil, which is meant to be a simpler CRUD (create, read, update, delete) utility. This request falls more into the query-area, which is covered by the following: #11. Even within CRUD, there's still work to do across all 5 of the supported ticketutil tools.

That being said, we're always open to contributions, and are willing to help! Feel free to fork the repo or open a PR if you make changes you feel would benefit the main ticketutil repo. We do prefer that if a major change is made in one tool (as in querying), the other tools support it as well, so that there's consistency across all of ticketutil.

[aweiteka]

Sounds good. I'll close this in favor of #11. Thanks.