[netstack3] Add emulated latency to testutil

- Adds emulated latency in packet deliveries to DummyNetwork - Changes backing for timers type of DummyEventDispatcher from BTreeMap to a BinaryHeap, allowing two timers to exist with the same target Instant. Change-Id: Ib5e96ea789c71d29466810a0f3ffcae4c68c3102

[netstack3] Add emulated latency to testutil
- Adds emulated latency in packet deliveries to DummyNetwork - Changes backing for timers type of DummyEventDispatcher from BTreeMap to a BinaryHeap, allowing two timers to exist with the same target Instant. Change-Id: Ib5e96ea789c71d29466810a0f3ffcae4c68c3102
64269775 · Bruno Dal Bo · CQ bot account: commit-bot@chromium.org · ff479813 · 64269775
Commit 64269775 authored 6 years ago by Bruno Dal Bo Committed by CQ bot account: commit-bot@chromium.org 6 years ago
--- a/src/connectivity/network/netstack3/core/src/testutil.rs
+++ b/src/connectivity/network/netstack3/core/src/testutil.rs