SERVER-48417 extends the index build process to act on the resumable index build information read from the internal idents written at shutdown. As a preliminary step, we can extend the internal interfaces/components to accept, but not act on, the resumable index build information. This will narrow the scope of the changes necessary to complete SERVER-48417. This can be viewed as a sub-task of SERVER-48417. The interfaces that may need to be extended include:
- IndexBuildCoordinator
- MultiIndexBlock
- IndexBuildBlock
- CatalogControl
- has to be done before
- 
                    SERVER-49301 remove startingAfterUncleanShutdown decorator -         
- Closed
 
-         
- is related to
- 
                    SERVER-48417 adjust startup to resume index build from phase 3 (catch up from side table) -         
- Closed
 
-         
- 
                    SERVER-49408 adjust startup to resume index build from phase 2 (bulk load index table from sorted keys) -         
- Closed
 
-         
- 
                    SERVER-49409 adjust startup to resume index build from phase 1 (collection scan) -         
- Closed
 
-