(WIP) Add multiselect widget

[Benaiah]

- Summary

Add multiselect widget.

Remaining work:

• select-like UI and styling

- Test plan

Tested manually

- Description for the changelog

Add multiselect widget

[verythorough]

Deploy preview for netlify-cms-www ready!

Built with commit e496bf3

https://deploy-preview-922--netlify-cms-www.netlify.com

[erquhart]

Just pushed up some local commits from a few months back, this still needs to be completed.

[verythorough]

Deploy preview for cms-demo ready!

Built with commit e496bf3

https://deploy-preview-922--cms-demo.netlify.com

[cpjolicoeur]

Any thoughts on ETA for delivering this? Or is this something someone else needs to pick up and run with?

[erquhart]

@cpjolicoeur this does need a sponsor, if you're interested in taking it on let me know

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[cpjolicoeur]

@erquhart Will do. Not sure I can commit currently, but perhaps in the next few weeks. We are in the middle of rolling our own widget for this, but after that, I'll circle back and see about making a more generic, publically consumable multiselect.

[erquhart]

Awesome, sounds good.

[erquhart]

Closing as stale.

[begincalendar]

@erquhart Are the PRs that you are closing as "stale" being replaced, or just completely dropped for now?
If the former, could you please link to the replacements?

[erquhart]

They're only being replaced if someone replaces them. Need to close pull requests that stop moving, but anyone is free to pick one up and open a new PR.

_{Sent with GitHawk}

[erquhart]

Note: multi-select is now supported in the select widget via the multiple config flag: https://www.netlifycms.org/docs/widgets/#select