[roll third_party/pigweed] pw_console: Log filtering backend impl

Non-ui implementation to filter incoming and histoical log messages.

Original-Bug: 410
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/53400

third_party/pigweed Rolled-Commits: 86b10e1802a6ed1..c7934381a6b295b
Roller-URL: https://ci.chromium.org/b/8841038589666092672
Cq-Cl-Tag: roller-builder:pigweed-experimental-roller
Cq-Cl-Tag: roller-bid:8841038589666092672
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I298fcc9f80856d57e0b4bc74e68e7f82702b2d48
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/54060
Reviewed-by: 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 86b10e1..c793438 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 86b10e1802a6ed1aa806c61db5139949b16b8949
+Subproject commit c7934381a6b295b8bf215aae2170dd603466fb45