GitLab

Added the following items to the original logic:
* Added map route entry deletion on withdrawl so that the system doesn't
  incorrectly sync it back to the kernel's routing table
* Added an immediate route sync upon BGP path receive
* Added a mutex to ensure that deleted routes aren't accidentally synced
  back to the system
* Added stopCh and wg (wait group) handling
* Increase default sync time from 15 seconds to 1 minute since this
  scenario is unlikely and netlink calls could potentially be burdensome
  in large clusters.