Allow bulk update of incident type on Incidents

[mattreduce]

Use case

I'd like to be able to select multiple Incidents on the Data page, for example, and change their type.

Current Workaround

Change each Incident one at a time or use the API

Proposed Solution

In addition to Marking Definition, Labels, Author, etc allow users to replace the Incident Type field's value with a different Incident Type in the "Update entities" panel. The panel appears when you select multiple entities and click the "Update" icon down in the bottom toolbar.

Additional Information

N/A

If the feature request is approved, would you be willing to submit a PR?

Yes 😄

[Jipegien]

@mattreduce Please do not hesitate to submit a PR for this issue. Keep in mind that the possible values should be restricted to the incident_type_ov. Thanks! :)