This cl implements CommandSection and use it to add procrank.proto Section

Bug: 63863444
Test: manual - create gtests for CommandSection and Procrank Parser following
instructions in the README.md of incidentd and incident_helper on how to
run them.

Change-Id: I099808fd13bf9ed9a564b122f1126b1691a83291
diff --git a/Android.bp b/Android.bp
index eb35ffb..33acffa 100644
--- a/Android.bp
+++ b/Android.bp
@@ -40,6 +40,7 @@
             // needed by the device.
             srcs: [
                 "core/proto/android/os/kernelwake.proto",
+                "core/proto/android/os/procrank.proto",
                 "core/proto/android/service/graphicsstats.proto",
             ],
             shared: {