Support incorporating more update actions when rebasing or applying missing backend updates

[MichaelBuessemeyer]

Detailed Description

Currently, applying the following actions when fast forwarding or rebasing update actions are not supported.

• "addLayerToAnnotation"
• "addSegmentIndex"
• "createTracing"
• "deleteLayerFromAnnotation"
• "importVolumeTracing"
• "revertToVersion"
• "updateLayerMetadata"
• "updateMetadataOfAnnotation"
• "removeFallbackLayer"
• "updateMappingName"

For each of these actions:
Check how difficult it is to apply them. If it is rather easy, add support for them. If it is too difficult, disallow such actions when in liveCollab mode.
In case a difficult-to-apply update action, which will then be disallowed, is needed, the owner needs to make it not shared, do the change and then enable othersMayEdit again.

Context

• Live is Live milestone 3