Add discoveryServiceMapEnabled field to AgentConfiguration proto

proto/process/agent.proto

@@ -1983,6 +1983,12 @@ message HTTPStats {
 		// if the HTTPStats has a single sample, this field will be the latency (in nanoseconds) of the only sample.
 		// this is purely to avoid the overhead of having single entry sketches.
 		double firstLatencySample = 4;
+
+		// average latency in nanoseconds across all requests in this bucket.
+		// Populated by discovery service map mode in lieu of DDSketches and
+		// firstLatencySample, since discovery mode does not retain a sketch
+		// or per-request samples.
+		double avgLatency = 5;
 	}
 }
 

proto/process/connections.proto

@@ -358,6 +358,7 @@ message AgentConfiguration {
   bool ccmEnabled = 4;
   bool csmEnabled = 5;
   bool eudmEnabled = 6;
+  bool discoveryServiceMapEnabled = 7;
 }