Icon Request: Hand Waving

## Icon Request

* Icon name: Hand Wave
* Use case: Chat, synced documents, editing rights, saying hi
* Screenshots of similar icons: 👋

Love these icons and their simplicity. In making a synced editing app, where the common text-editor is locked and uses can request access to edit – would like to have such a waving hand.. similar to raising ones hand in class. The edit icon fits.. but this would be better. Maybe there's other great uses for it?

Start by examining the repository's existing icon contribution structure and the similar edit icon. Add the requested Hand Wave icon in the same form, then verify that it matches the project's icon conventions and supports the stated chat, access, and greeting uses.

Written by the indexing model from the issue text.