Apply TaskFragmentOrganizer changes in one WCT (1/2)

Before, when receive TaskFragment transaction, we apply changes in
multiple WindowContainerTransactions. Now, update to apply all changes
in one WCT for the whole TaskFragment transaction.

Will update the TestAPI in the followup cl.

Bug: 240519866
Test: pass existing
Change-Id: I2e15b187bee95193874d76bc6963d3e01eba3910
10 files changed