[BOT.10] Add unit test for data limit and rule change in BpfCoordinator

The applying data limit is based on the forwarding rule changes.
Add the tests for verifying their interactions with netd.

Bug: 150736748
Test: BpfCoordinatorTest
Original-Change: https://android-review.googlesource.com/1311659
Merged-In: I5a98c4cd74e2de6005ee05defa761f6af3fd4e75
Change-Id: I5a98c4cd74e2de6005ee05defa761f6af3fd4e75
1 file changed