[roll third_party/pigweed] pw_ide: Visual Studio Code support

Provides settings, tasks, and recommended extensions for VS Code.

The intent is that (at least for now) downstream projects would copy
this configuration to their own projects and modify it for their
purposes. Over time, it may become challenging to keep up with upstream
changes, but VS Code doesn't provide a good mechanism for cascading
settings, so we will have to figure out some other solution in the
future.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/110260

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: 4769b27af137433..7644b17131d50eb
Roller-URL: https://ci.chromium.org/b/8802526699377773889
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Iafa7fb9f9129573c3b1c3756cf1ff454a1679e3b
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/111037
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 4769b27..7644b17 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit 4769b27af1374335f141d9929433d3fa60615c17
+Subproject commit 7644b17131d50eb47a81b06765cf04fb96de7ae9