Summary:
Add a Button to toggle alignment lines on Sonar interface.
Call sonar plugin in java, sending isAlignmentMode flag.
Changed API for setHighlighted to include alignment mode flag.
Button design to be added in future diffs by @[100003260904633:maximg]
Reviewed By: danielbuechele
Differential Revision: D9123749
fbshipit-source-id: 01c299f299be30dbb695bfb1d8007d63c27643d5