Add delay manager config options.

Add a new field trial with more flexible parsing and new options:
- Resample packet delays to only update histogram with maximum observed
 delay every X ms.
- Setting the maximum history size (in ms) used for calculating the
 relative arrival delay.

Legacy field trial used for configuration is maintained.

Bug: webrtc:10333
Change-Id: I35b004f5d8209c85b33cb49def3816db51650946
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/192789
Reviewed-by: Ivo Creusen <ivoc@webrtc.org>
Commit-Queue: Jakob Ivarsson <jakobi@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#32591}

modules/audio_coding/neteq/mock/mock_delay_manager.h

@@ -25,11 +25,15 @@ class MockDelayManager : public DelayManager {
   MockDelayManager(size_t max_packets_in_buffer,
                    int base_minimum_delay_ms,
                    int histogram_quantile,
+                   absl::optional<int> resample_interval_ms,
+                   int max_history_ms,
                    const TickTimer* tick_timer,
                    std::unique_ptr<Histogram> histogram)
       : DelayManager(max_packets_in_buffer,
                      base_minimum_delay_ms,
                      histogram_quantile,
+                     resample_interval_ms,
+                     max_history_ms,
                      tick_timer,
                      std::move(histogram)) {}
   MOCK_METHOD(int, TargetDelayMs, (), (const));