Moving test related to Dragging to their own class from TaplTestsLauncher3

Renaming the following test names:
 - testDragAppIconToWorkspaceCell to testDragAppIconToMultipleWorkspaceCells
 - testDragShortcutToMultipleWoCells to testDragShortcutToMultipleWorkspaceCells

Bug: 298234173
Test: atest OopTaplDragTest
Change-Id: I16707e0a882164c7a5acec6a4197bd0bea8514a7
5 files changed