Add EXPERIMENTAL_ANNOTATED_PERF_PROFILE function

Similar to EXPERIMENTAL_PERF_PROFILE generates a pprof profile but it
also annotates function names with Android specific annotations.

Change-Id: I249c4fda5034b52204092e5243076884b7c523fc

BUILD

diff --git a/BUILD b/BUILD
index 84a96e1..ab137e9 100644
--- a/BUILD
+++ b/BUILD
@@ -1548,6 +1548,8 @@
 perfetto_filegroup(
     name = "src_trace_processor_util_profile_builder",
     srcs = [
+        "src/trace_processor/util/annotated_callsites.cc",
+        "src/trace_processor/util/annotated_callsites.h",
         "src/trace_processor/util/profile_builder.cc",
         "src/trace_processor/util/profile_builder.h",
     ],