RFE: Add the ability to manually batch sync to work around using conditional rules with large data sets

Description given by Intuit.

We have 38k records in our test environment and all of them have to sync'd to one of the integrated applications. We wanted to do this by adding a conditional rule (e.g., accountStatus eq "active") to a role which has assignment in the target application.

When adding the condition to the role either from UI or using REST, the request get's timed out and after a while server crashes with OutOfMemory error. We have created index on 'accountStatus' attribute and that did not help.