Add support for creation of AEC dump during the test with PC framework.

Also add conversational speech into PC smoke test (with resource files).

Bug: webrtc:10138
Change-Id: I415a5565bc9146821476ffc60f57f47ed51f89c4
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/132323
Reviewed-by: Ivo Creusen <ivoc@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org>
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27592}

test/pc/e2e/peer_connection_quality_test.h

@@ -123,6 +123,10 @@ class PeerConfigurerImpl final
     params_->rtc_event_log_path = std::move(path);
     return this;
   }
+  PeerConfigurer* SetAecDumpPath(std::string path) override {
+    params_->aec_dump_path = std::move(path);
+    return this;
+  }
   PeerConfigurer* SetRTCConfiguration(
       PeerConnectionInterface::RTCConfiguration configuration) override {
     params_->rtc_configuration = std::move(configuration);