Add a skeleton VpnManagerService, and start it on boot.

This adds a lot of unused code but this should make it easier to
review subsequent CLs.

Bug: 173331190
Test: builds, boots, "dumpsys vpnmanager" succeeds
Change-Id: Ied379654a0c3ab6242d3125661fe30f322395059
1 file changed
tree: 9081cb4589d4fddf5e7c23af7d52e4d923b4d5e3
  1. framework/
  2. service/
  3. OWNERS