[roll third_party/pigweed] pw_web: Implement Log Viewer application

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/147331

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 3a9fa099ffe317d..ea5e0d493a5e5d5
Roller-URL: https://ci.chromium.org/b/8779090792170336433
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I65e340033273670863b831f8e63d37128c86ed06
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/150693
Bot-Commit: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
Commit-Queue: Pigweed Integration Roller <pigweed-integration-roller@pigweed.google.com.iam.gserviceaccount.com>
diff --git a/third_party/pigweed b/third_party/pigweed
index 3a9fa09..ea5e0d4 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 3a9fa099ffe317d0fe238da6de88c178aa830c0a
+Subproject commit ea5e0d493a5e5d5152df779b9146e10f490df2bf