Add TaskInputController for Recents Go

Add TaskInputController, a class handling input logic for the Recents Go
view. This CL hooks up the tap to launch logic with swiping + clear all
to be added in a later CL.

Bug: 114136250
Test: Build Launcher3IconRecentsGo and tap apps; see that they launch
task
Change-Id: I03e14a6f66307b9c6239cdeaec95d09f160fa3e0