Adds a VersionInfo message to SignedMessage

[ Merge from http://go/wvgerrit/72724 ]

This adds a message that contains SDK and service version information
useful for debugging problems that occur because of different services.

BUG: 80536436

Test: Unit tests and manual GPlay testing.
Change-Id: I095f893b907ea7c2cd149155fb2cd4c7181e7bb2

libwvdrmengine/cdm/metrics/src/metrics_collections.cpp

@@ -191,6 +191,10 @@ void SessionMetrics::SerializeSessionMetrics(
       session_metrics->mutable_cdm_session_license_request_latency_ms());
   session_metrics->set_allocated_oemcrypto_build_info(
       oemcrypto_build_info_.ToProto());
+  session_metrics->set_allocated_license_sdk_version(
+      license_sdk_version_.ToProto());
+  session_metrics->set_allocated_license_service_version(
+      license_service_version_.ToProto());
 }
 
 OemCryptoDynamicAdapterMetrics::OemCryptoDynamicAdapterMetrics()