action to send an SMS

[sds100]

Developer TODO (don't remove)

• [ ] create new branch. put issue number at start of name
• [ ] option to send a predetermined message or show a prompt to choose the message
• [ ] option to instantly send the message or open the sms in the messaging app before sending
• [ ] update documentation
• [ ] squash and merge
• [ ] delete branch

[GL513]

Possibly also have the option to either send it automatically, or to open the messaging app so the user can send it themselves.

[sds100]

yeah